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Finding the Fourth Proportional to 625,882.34, 863,710.09 and 339,399.01

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Solution

The fourth proportional to 625,882.34, 863,710.09 and 339,399.01 is: 468,366.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,882.34 : 863,710.09 = 339,399.01 : x
  2. Step 2: Convert to fraction form
    625,882.34/863,710.09 = 339,399.01/x
  3. Step 3: Cross multiply
    625,882.34x = 863,710.09 × 339,399.01
  4. Step 4: Simplify right side
    625,882.34x = 293,142,349,704.15
  5. Step 5: Solve for x
    x = 293,142,349,704.15/625,882.34
  6. Step 6: Final answer
    x = 468,366.54

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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.