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Finding the Fourth Proportional to 480,874.86, 721,377.94 and 200,326.50

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Solution

The fourth proportional to 480,874.86, 721,377.94 and 200,326.50 is: 300,517.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,874.86 : 721,377.94 = 200,326.50 : x
  2. Step 2: Convert to fraction form
    480,874.86/721,377.94 = 200,326.50/x
  3. Step 3: Cross multiply
    480,874.86x = 721,377.94 × 200,326.50
  4. Step 4: Simplify right side
    480,874.86x = 144,511,117,897.41
  5. Step 5: Solve for x
    x = 144,511,117,897.41/480,874.86
  6. Step 6: Final answer
    x = 300,517.10

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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.