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Finding the Fourth Proportional to 543,787.64, 749,841.86 and 339,764.03

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Solution

The fourth proportional to 543,787.64, 749,841.86 and 339,764.03 is: 468,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,787.64 : 749,841.86 = 339,764.03 : x
  2. Step 2: Convert to fraction form
    543,787.64/749,841.86 = 339,764.03/x
  3. Step 3: Cross multiply
    543,787.64x = 749,841.86 × 339,764.03
  4. Step 4: Simplify right side
    543,787.64x = 254,769,289,316.50
  5. Step 5: Solve for x
    x = 254,769,289,316.50/543,787.64
  6. Step 6: Final answer
    x = 468,508.79

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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.