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Finding the Fourth Proportional to 527,666.82, 791,492.67 and 128,306.58

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Solution

The fourth proportional to 527,666.82, 791,492.67 and 128,306.58 is: 192,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,666.82 : 791,492.67 = 128,306.58 : x
  2. Step 2: Convert to fraction form
    527,666.82/791,492.67 = 128,306.58/x
  3. Step 3: Cross multiply
    527,666.82x = 791,492.67 × 128,306.58
  4. Step 4: Simplify right side
    527,666.82x = 101,553,717,582.77
  5. Step 5: Solve for x
    x = 101,553,717,582.77/527,666.82
  6. Step 6: Final answer
    x = 192,458.03

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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.