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Finding the Fourth Proportional to 527,079.52, 727,370.04 and 285,362.16

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Solution

The fourth proportional to 527,079.52, 727,370.04 and 285,362.16 is: 393,799.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,079.52 : 727,370.04 = 285,362.16 : x
  2. Step 2: Convert to fraction form
    527,079.52/727,370.04 = 285,362.16/x
  3. Step 3: Cross multiply
    527,079.52x = 727,370.04 × 285,362.16
  4. Step 4: Simplify right side
    527,079.52x = 207,563,885,733.69
  5. Step 5: Solve for x
    x = 207,563,885,733.69/527,079.52
  6. Step 6: Final answer
    x = 393,799.94

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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.