Home / 527,175.28-727,507.92-285,463.36

Finding the Fourth Proportional to 527,175.28, 727,507.92 and 285,463.36

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Solution

The fourth proportional to 527,175.28, 727,507.92 and 285,463.36 is: 393,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,175.28 : 727,507.92 = 285,463.36 : x
  2. Step 2: Convert to fraction form
    527,175.28/727,507.92 = 285,463.36/x
  3. Step 3: Cross multiply
    527,175.28x = 727,507.92 × 285,463.36
  4. Step 4: Simplify right side
    527,175.28x = 207,676,855,269.81
  5. Step 5: Solve for x
    x = 207,676,855,269.81/527,175.28
  6. Step 6: Final answer
    x = 393,942.70

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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.