Home / 527,423.14-727,961.03-320,647.59

Finding the Fourth Proportional to 527,423.14, 727,961.03 and 320,647.59

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Solution

The fourth proportional to 527,423.14, 727,961.03 and 320,647.59 is: 442,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,423.14 : 727,961.03 = 320,647.59 : x
  2. Step 2: Convert to fraction form
    527,423.14/727,961.03 = 320,647.59/x
  3. Step 3: Cross multiply
    527,423.14x = 727,961.03 × 320,647.59
  4. Step 4: Simplify right side
    527,423.14x = 233,418,948,280.18
  5. Step 5: Solve for x
    x = 233,418,948,280.18/527,423.14
  6. Step 6: Final answer
    x = 442,564.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.