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Finding the Fourth Proportional to 527,909.70, 791,864.37 and 456,620.33

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Solution

The fourth proportional to 527,909.70, 791,864.37 and 456,620.33 is: 684,930.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,909.70 : 791,864.37 = 456,620.33 : x
  2. Step 2: Convert to fraction form
    527,909.70/791,864.37 = 456,620.33/x
  3. Step 3: Cross multiply
    527,909.70x = 791,864.37 × 456,620.33
  4. Step 4: Simplify right side
    527,909.70x = 361,581,365,985.32
  5. Step 5: Solve for x
    x = 361,581,365,985.32/527,909.70
  6. Step 6: Final answer
    x = 684,930.33

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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.