Home / 752,930.28-1,039,061.88-408,780.72

Finding the Fourth Proportional to 752,930.28, 1,039,061.88 and 408,780.72

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Solution

The fourth proportional to 752,930.28, 1,039,061.88 and 408,780.72 is: 564,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,930.28 : 1,039,061.88 = 408,780.72 : x
  2. Step 2: Convert to fraction form
    752,930.28/1,039,061.88 = 408,780.72/x
  3. Step 3: Cross multiply
    752,930.28x = 1,039,061.88 × 408,780.72
  4. Step 4: Simplify right side
    752,930.28x = 424,748,463,430.95
  5. Step 5: Solve for x
    x = 424,748,463,430.95/752,930.28
  6. Step 6: Final answer
    x = 564,127.22

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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.