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Finding the Fourth Proportional to 434,179.18, 650,481.42 and 424,731.34

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Solution

The fourth proportional to 434,179.18, 650,481.42 and 424,731.34 is: 636,326.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,179.18 : 650,481.42 = 424,731.34 : x
  2. Step 2: Convert to fraction form
    434,179.18/650,481.42 = 424,731.34/x
  3. Step 3: Cross multiply
    434,179.18x = 650,481.42 × 424,731.34
  4. Step 4: Simplify right side
    434,179.18x = 276,279,845,161.70
  5. Step 5: Solve for x
    x = 276,279,845,161.70/434,179.18
  6. Step 6: Final answer
    x = 636,326.79

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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.