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Finding the Fourth Proportional to 527,617.16, 791,440.52 and 328,512.68

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Solution

The fourth proportional to 527,617.16, 791,440.52 and 328,512.68 is: 492,778.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,617.16 : 791,440.52 = 328,512.68 : x
  2. Step 2: Convert to fraction form
    527,617.16/791,440.52 = 328,512.68/x
  3. Step 3: Cross multiply
    527,617.16x = 791,440.52 × 328,512.68
  4. Step 4: Simplify right side
    527,617.16x = 259,998,240,686.03
  5. Step 5: Solve for x
    x = 259,998,240,686.03/527,617.16
  6. Step 6: Final answer
    x = 492,778.22

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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.