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Finding the Fourth Proportional to 439,644.60, 606,713.40 and 238,440.60

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Solution

The fourth proportional to 439,644.60, 606,713.40 and 238,440.60 is: 329,050.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,644.60 : 606,713.40 = 238,440.60 : x
  2. Step 2: Convert to fraction form
    439,644.60/606,713.40 = 238,440.60/x
  3. Step 3: Cross multiply
    439,644.60x = 606,713.40 × 238,440.60
  4. Step 4: Simplify right side
    439,644.60x = 144,665,107,124.04
  5. Step 5: Solve for x
    x = 144,665,107,124.04/439,644.60
  6. Step 6: Final answer
    x = 329,050.12

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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.