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Finding the Fourth Proportional to 625,459.14, 863,127.33 and 349,814.12

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Solution

The fourth proportional to 625,459.14, 863,127.33 and 349,814.12 is: 482,739.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,459.14 : 863,127.33 = 349,814.12 : x
  2. Step 2: Convert to fraction form
    625,459.14/863,127.33 = 349,814.12/x
  3. Step 3: Cross multiply
    625,459.14x = 863,127.33 × 349,814.12
  4. Step 4: Simplify right side
    625,459.14x = 301,934,123,076.26
  5. Step 5: Solve for x
    x = 301,934,123,076.26/625,459.14
  6. Step 6: Final answer
    x = 482,739.96

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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.