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Finding the Fourth Proportional to 456,116.80, 684,175.20 and 437,454.40

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Solution

The fourth proportional to 456,116.80, 684,175.20 and 437,454.40 is: 656,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,116.80 : 684,175.20 = 437,454.40 : x
  2. Step 2: Convert to fraction form
    456,116.80/684,175.20 = 437,454.40/x
  3. Step 3: Cross multiply
    456,116.80x = 684,175.20 × 437,454.40
  4. Step 4: Simplify right side
    456,116.80x = 299,295,451,610.88
  5. Step 5: Solve for x
    x = 299,295,451,610.88/456,116.80
  6. Step 6: Final answer
    x = 656,181.60

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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.