Home / 527,830.12-791,734.05-128,473.12

Finding the Fourth Proportional to 527,830.12, 791,734.05 and 128,473.12

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Solution

The fourth proportional to 527,830.12, 791,734.05 and 128,473.12 is: 192,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,830.12 : 791,734.05 = 128,473.12 : x
  2. Step 2: Convert to fraction form
    527,830.12/791,734.05 = 128,473.12/x
  3. Step 3: Cross multiply
    527,830.12x = 791,734.05 × 128,473.12
  4. Step 4: Simplify right side
    527,830.12x = 101,716,543,613.74
  5. Step 5: Solve for x
    x = 101,716,543,613.74/527,830.12
  6. Step 6: Final answer
    x = 192,706.97

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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.