Home / 527,126.91-727,487.24-300,806.43

Finding the Fourth Proportional to 527,126.91, 727,487.24 and 300,806.43

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Solution

The fourth proportional to 527,126.91, 727,487.24 and 300,806.43 is: 415,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,126.91 : 727,487.24 = 300,806.43 : x
  2. Step 2: Convert to fraction form
    527,126.91/727,487.24 = 300,806.43/x
  3. Step 3: Cross multiply
    527,126.91x = 727,487.24 × 300,806.43
  4. Step 4: Simplify right side
    527,126.91x = 218,832,838,030.92
  5. Step 5: Solve for x
    x = 218,832,838,030.92/527,126.91
  6. Step 6: Final answer
    x = 415,142.60

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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.