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Finding the Fourth Proportional to 527,679.60, 792,102.60 and 328,225.20

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Solution

The fourth proportional to 527,679.60, 792,102.60 and 328,225.20 is: 492,700.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,679.60 : 792,102.60 = 328,225.20 : x
  2. Step 2: Convert to fraction form
    527,679.60/792,102.60 = 328,225.20/x
  3. Step 3: Cross multiply
    527,679.60x = 792,102.60 × 328,225.20
  4. Step 4: Simplify right side
    527,679.60x = 259,988,034,305.52
  5. Step 5: Solve for x
    x = 259,988,034,305.52/527,679.60
  6. Step 6: Final answer
    x = 492,700.56

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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.