Home / 752,972.31-1,129,126.91-353,726.55

Finding the Fourth Proportional to 752,972.31, 1,129,126.91 and 353,726.55

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Solution

The fourth proportional to 752,972.31, 1,129,126.91 and 353,726.55 is: 530,434.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,972.31 : 1,129,126.91 = 353,726.55 : x
  2. Step 2: Convert to fraction form
    752,972.31/1,129,126.91 = 353,726.55/x
  3. Step 3: Cross multiply
    752,972.31x = 1,129,126.91 × 353,726.55
  4. Step 4: Simplify right side
    752,972.31x = 399,402,164,617.83
  5. Step 5: Solve for x
    x = 399,402,164,617.83/752,972.31
  6. Step 6: Final answer
    x = 530,434.07

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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.