Home / 779,380.89-1,075,239.61-452,638.28

Finding the Fourth Proportional to 779,380.89, 1,075,239.61 and 452,638.28

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Solution

The fourth proportional to 779,380.89, 1,075,239.61 and 452,638.28 is: 624,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,380.89 : 1,075,239.61 = 452,638.28 : x
  2. Step 2: Convert to fraction form
    779,380.89/1,075,239.61 = 452,638.28/x
  3. Step 3: Cross multiply
    779,380.89x = 1,075,239.61 × 452,638.28
  4. Step 4: Simplify right side
    779,380.89x = 486,694,605,712.64
  5. Step 5: Solve for x
    x = 486,694,605,712.64/779,380.89
  6. Step 6: Final answer
    x = 624,463.10

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Double scale
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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.