Home / 721,816.64-1,082,874.36-216,357.20

Finding the Fourth Proportional to 721,816.64, 1,082,874.36 and 216,357.20

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Solution

The fourth proportional to 721,816.64, 1,082,874.36 and 216,357.20 is: 324,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,816.64 : 1,082,874.36 = 216,357.20 : x
  2. Step 2: Convert to fraction form
    721,816.64/1,082,874.36 = 216,357.20/x
  3. Step 3: Cross multiply
    721,816.64x = 1,082,874.36 × 216,357.20
  4. Step 4: Simplify right side
    721,816.64x = 234,287,664,481.39
  5. Step 5: Solve for x
    x = 234,287,664,481.39/721,816.64
  6. Step 6: Final answer
    x = 324,580.58

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Double scale
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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.