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Finding the Fourth Proportional to 512,511.10, 768,766.65 and 484,954.90

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Solution

The fourth proportional to 512,511.10, 768,766.65 and 484,954.90 is: 727,432.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,511.10 : 768,766.65 = 484,954.90 : x
  2. Step 2: Convert to fraction form
    512,511.10/768,766.65 = 484,954.90/x
  3. Step 3: Cross multiply
    512,511.10x = 768,766.65 × 484,954.90
  4. Step 4: Simplify right side
    512,511.10x = 372,817,153,874.09
  5. Step 5: Solve for x
    x = 372,817,153,874.09/512,511.10
  6. Step 6: Final answer
    x = 727,432.35

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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.