Home / 815,046.30-1,222,569.45-216,099.90

Finding the Fourth Proportional to 815,046.30, 1,222,569.45 and 216,099.90

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Solution

The fourth proportional to 815,046.30, 1,222,569.45 and 216,099.90 is: 324,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,046.30 : 1,222,569.45 = 216,099.90 : x
  2. Step 2: Convert to fraction form
    815,046.30/1,222,569.45 = 216,099.90/x
  3. Step 3: Cross multiply
    815,046.30x = 1,222,569.45 × 216,099.90
  4. Step 4: Simplify right side
    815,046.30x = 264,197,135,888.06
  5. Step 5: Solve for x
    x = 264,197,135,888.06/815,046.30
  6. Step 6: Final answer
    x = 324,149.85

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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.