Home / 739,621,948.12-1,020,694,806.34-422,075,870.76

Finding the Fourth Proportional to 739,621,948.12, 1,020,694,806.34 and 422,075,870.76

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Solution

The fourth proportional to 739,621,948.12, 1,020,694,806.34 and 422,075,870.76 is: 582,474,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,621,948.12 : 1,020,694,806.34 = 422,075,870.76 : x
  2. Step 2: Convert to fraction form
    739,621,948.12/1,020,694,806.34 = 422,075,870.76/x
  3. Step 3: Cross multiply
    739,621,948.12x = 1,020,694,806.34 × 422,075,870.76
  4. Step 4: Simplify right side
    739,621,948.12x = 430,810,649,166,165,056
  5. Step 5: Solve for x
    x = 430,810,649,166,165,056/739,621,948.12
  6. Step 6: Final answer
    x = 582,474,127.84

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Double scale
Find fourth proportional to 739,621,949.12, 1,020,694,807.72 and 422,075,871.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.