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Finding the Fourth Proportional to 521,098.44, 780,789.06 and 477,520.44

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Solution

The fourth proportional to 521,098.44, 780,789.06 and 477,520.44 is: 715,493.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,098.44 : 780,789.06 = 477,520.44 : x
  2. Step 2: Convert to fraction form
    521,098.44/780,789.06 = 477,520.44/x
  3. Step 3: Cross multiply
    521,098.44x = 780,789.06 × 477,520.44
  4. Step 4: Simplify right side
    521,098.44x = 372,842,735,478.39
  5. Step 5: Solve for x
    x = 372,842,735,478.39/521,098.44
  6. Step 6: Final answer
    x = 715,493.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.