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Finding the Fourth Proportional to 526,404.72, 726,436.40 and 284,687.58

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Solution

The fourth proportional to 526,404.72, 726,436.40 and 284,687.58 is: 392,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,404.72 : 726,436.40 = 284,687.58 : x
  2. Step 2: Convert to fraction form
    526,404.72/726,436.40 = 284,687.58/x
  3. Step 3: Cross multiply
    526,404.72x = 726,436.40 × 284,687.58
  4. Step 4: Simplify right side
    526,404.72x = 206,807,420,739.91
  5. Step 5: Solve for x
    x = 206,807,420,739.91/526,404.72
  6. Step 6: Final answer
    x = 392,867.72

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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.