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Finding the Fourth Proportional to 527,499.68, 791,346.72 and 172,532.58

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Solution

The fourth proportional to 527,499.68, 791,346.72 and 172,532.58 is: 258,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,499.68 : 791,346.72 = 172,532.58 : x
  2. Step 2: Convert to fraction form
    527,499.68/791,346.72 = 172,532.58/x
  3. Step 3: Cross multiply
    527,499.68x = 791,346.72 × 172,532.58
  4. Step 4: Simplify right side
    527,499.68x = 136,533,091,276.14
  5. Step 5: Solve for x
    x = 136,533,091,276.14/527,499.68
  6. Step 6: Final answer
    x = 258,830.66

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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.