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Finding the Fourth Proportional to 520,807.04, 781,284.84 and 161,008.88

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Solution

The fourth proportional to 520,807.04, 781,284.84 and 161,008.88 is: 241,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,807.04 : 781,284.84 = 161,008.88 : x
  2. Step 2: Convert to fraction form
    520,807.04/781,284.84 = 161,008.88/x
  3. Step 3: Cross multiply
    520,807.04x = 781,284.84 × 161,008.88
  4. Step 4: Simplify right side
    520,807.04x = 125,793,797,049.38
  5. Step 5: Solve for x
    x = 125,793,797,049.38/520,807.04
  6. Step 6: Final answer
    x = 241,536.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.