Home / 721,819.64-1,082,878.88-216,360.20

Finding the Fourth Proportional to 721,819.64, 1,082,878.88 and 216,360.20

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Solution

The fourth proportional to 721,819.64, 1,082,878.88 and 216,360.20 is: 324,585.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,819.64 : 1,082,878.88 = 216,360.20 : x
  2. Step 2: Convert to fraction form
    721,819.64/1,082,878.88 = 216,360.20/x
  3. Step 3: Cross multiply
    721,819.64x = 1,082,878.88 × 216,360.20
  4. Step 4: Simplify right side
    721,819.64x = 234,291,891,052.58
  5. Step 5: Solve for x
    x = 234,291,891,052.58/721,819.64
  6. Step 6: Final answer
    x = 324,585.09

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Half scale
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Double scale
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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.