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Finding the Fourth Proportional to 526,463.87, 726,519.35 and 284,745.69

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Solution

The fourth proportional to 526,463.87, 726,519.35 and 284,745.69 is: 392,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,463.87 : 726,519.35 = 284,745.69 : x
  2. Step 2: Convert to fraction form
    526,463.87/726,519.35 = 284,745.69/x
  3. Step 3: Cross multiply
    526,463.87x = 726,519.35 × 284,745.69
  4. Step 4: Simplify right side
    526,463.87x = 206,873,254,546.79
  5. Step 5: Solve for x
    x = 206,873,254,546.79/526,463.87
  6. Step 6: Final answer
    x = 392,948.63

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Double scale
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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.