Home / 725,304.32-1,087,035.20-409,938.56

Finding the Fourth Proportional to 725,304.32, 1,087,035.20 and 409,938.56

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Solution

The fourth proportional to 725,304.32, 1,087,035.20 and 409,938.56 is: 614,387.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,304.32 : 1,087,035.20 = 409,938.56 : x
  2. Step 2: Convert to fraction form
    725,304.32/1,087,035.20 = 409,938.56/x
  3. Step 3: Cross multiply
    725,304.32x = 1,087,035.20 × 409,938.56
  4. Step 4: Simplify right side
    725,304.32x = 445,617,644,557.31
  5. Step 5: Solve for x
    x = 445,617,644,557.31/725,304.32
  6. Step 6: Final answer
    x = 614,387.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.