Home / 527,127.91-727,488.62-300,807.43

Finding the Fourth Proportional to 527,127.91, 727,488.62 and 300,807.43

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Solution

The fourth proportional to 527,127.91, 727,488.62 and 300,807.43 is: 415,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,127.91 : 727,488.62 = 300,807.43 : x
  2. Step 2: Convert to fraction form
    527,127.91/727,488.62 = 300,807.43/x
  3. Step 3: Cross multiply
    527,127.91x = 727,488.62 × 300,807.43
  4. Step 4: Simplify right side
    527,127.91x = 218,833,982,136.45
  5. Step 5: Solve for x
    x = 218,833,982,136.45/527,127.91
  6. Step 6: Final answer
    x = 415,143.99

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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.