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Finding the Fourth Proportional to 526,609.43, 726,718.02 and 284,891.30

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Solution

The fourth proportional to 526,609.43, 726,718.02 and 284,891.30 is: 393,148.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,609.43 : 726,718.02 = 284,891.30 : x
  2. Step 2: Convert to fraction form
    526,609.43/726,718.02 = 284,891.30/x
  3. Step 3: Cross multiply
    526,609.43x = 726,718.02 × 284,891.30
  4. Step 4: Simplify right side
    526,609.43x = 207,035,641,451.23
  5. Step 5: Solve for x
    x = 207,035,641,451.23/526,609.43
  6. Step 6: Final answer
    x = 393,148.37

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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.