Home / 862,347.80-1,190,075.82-480,374.48

Finding the Fourth Proportional to 862,347.80, 1,190,075.82 and 480,374.48

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Solution

The fourth proportional to 862,347.80, 1,190,075.82 and 480,374.48 is: 662,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,347.80 : 1,190,075.82 = 480,374.48 : x
  2. Step 2: Convert to fraction form
    862,347.80/1,190,075.82 = 480,374.48/x
  3. Step 3: Cross multiply
    862,347.80x = 1,190,075.82 × 480,374.48
  4. Step 4: Simplify right side
    862,347.80x = 571,682,053,193.07
  5. Step 5: Solve for x
    x = 571,682,053,193.07/862,347.80
  6. Step 6: Final answer
    x = 662,936.76

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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.