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Finding the Fourth Proportional to 639,251.57, 958,628.01 and 239,674.52

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Solution

The fourth proportional to 639,251.57, 958,628.01 and 239,674.52 is: 359,418.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,251.57 : 958,628.01 = 239,674.52 : x
  2. Step 2: Convert to fraction form
    639,251.57/958,628.01 = 239,674.52/x
  3. Step 3: Cross multiply
    639,251.57x = 958,628.01 × 239,674.52
  4. Step 4: Simplify right side
    639,251.57x = 229,758,708,155.31
  5. Step 5: Solve for x
    x = 229,758,708,155.31/639,251.57
  6. Step 6: Final answer
    x = 359,418.29

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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.