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Finding the Fourth Proportional to 498,340.80, 747,511.20 and 410,860.80

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Solution

The fourth proportional to 498,340.80, 747,511.20 and 410,860.80 is: 616,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,340.80 : 747,511.20 = 410,860.80 : x
  2. Step 2: Convert to fraction form
    498,340.80/747,511.20 = 410,860.80/x
  3. Step 3: Cross multiply
    498,340.80x = 747,511.20 × 410,860.80
  4. Step 4: Simplify right side
    498,340.80x = 307,123,049,640.96
  5. Step 5: Solve for x
    x = 307,123,049,640.96/498,340.80
  6. Step 6: Final answer
    x = 616,291.20

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Similar ratio
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1.5x scale

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.