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Finding the Fourth Proportional to 526,402.71, 726,433.65 and 284,685.57

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Solution

The fourth proportional to 526,402.71, 726,433.65 and 284,685.57 is: 392,864.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,402.71 : 726,433.65 = 284,685.57 : x
  2. Step 2: Convert to fraction form
    526,402.71/726,433.65 = 284,685.57/x
  3. Step 3: Cross multiply
    526,402.71x = 726,433.65 × 284,685.57
  4. Step 4: Simplify right side
    526,402.71x = 206,805,177,717.43
  5. Step 5: Solve for x
    x = 206,805,177,717.43/526,402.71
  6. Step 6: Final answer
    x = 392,864.96

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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.