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Finding the Fourth Proportional to 526,508.18, 726,581.36 and 284,790.64

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Solution

The fourth proportional to 526,508.18, 726,581.36 and 284,790.64 is: 393,011.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,508.18 : 726,581.36 = 284,790.64 : x
  2. Step 2: Convert to fraction form
    526,508.18/726,581.36 = 284,790.64/x
  3. Step 3: Cross multiply
    526,508.18x = 726,581.36 × 284,790.64
  4. Step 4: Simplify right side
    526,508.18x = 206,923,570,526.47
  5. Step 5: Solve for x
    x = 206,923,570,526.47/526,508.18
  6. Step 6: Final answer
    x = 393,011.12

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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.