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Finding the Fourth Proportional to 527,373.70, 727,721.09 and 297,956.04

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Solution

The fourth proportional to 527,373.70, 727,721.09 and 297,956.04 is: 411,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,373.70 : 727,721.09 = 297,956.04 : x
  2. Step 2: Convert to fraction form
    527,373.70/727,721.09 = 297,956.04/x
  3. Step 3: Cross multiply
    527,373.70x = 727,721.09 × 297,956.04
  4. Step 4: Simplify right side
    527,373.70x = 216,828,894,200.88
  5. Step 5: Solve for x
    x = 216,828,894,200.88/527,373.70
  6. Step 6: Final answer
    x = 411,148.48

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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.