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Finding the Fourth Proportional to 527,694.60, 792,125.10 and 328,240.20

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Solution

The fourth proportional to 527,694.60, 792,125.10 and 328,240.20 is: 492,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,694.60 : 792,125.10 = 328,240.20 : x
  2. Step 2: Convert to fraction form
    527,694.60/792,125.10 = 328,240.20/x
  3. Step 3: Cross multiply
    527,694.60x = 792,125.10 × 328,240.20
  4. Step 4: Simplify right side
    527,694.60x = 260,007,301,249.02
  5. Step 5: Solve for x
    x = 260,007,301,249.02/527,694.60
  6. Step 6: Final answer
    x = 492,723.07

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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.