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Finding the Fourth Proportional to 519,881.20, 779,821.80 and 295,154.80

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Solution

The fourth proportional to 519,881.20, 779,821.80 and 295,154.80 is: 442,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,881.20 : 779,821.80 = 295,154.80 : x
  2. Step 2: Convert to fraction form
    519,881.20/779,821.80 = 295,154.80/x
  3. Step 3: Cross multiply
    519,881.20x = 779,821.80 × 295,154.80
  4. Step 4: Simplify right side
    519,881.20x = 230,168,147,414.64
  5. Step 5: Solve for x
    x = 230,168,147,414.64/519,881.20
  6. Step 6: Final answer
    x = 442,732.20

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Similar ratio
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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.