Home / 815,276.97-1,222,913.84-216,298.17

Finding the Fourth Proportional to 815,276.97, 1,222,913.84 and 216,298.17

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Solution

The fourth proportional to 815,276.97, 1,222,913.84 and 216,298.17 is: 324,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,276.97 : 1,222,913.84 = 216,298.17 : x
  2. Step 2: Convert to fraction form
    815,276.97/1,222,913.84 = 216,298.17/x
  3. Step 3: Cross multiply
    815,276.97x = 1,222,913.84 × 216,298.17
  4. Step 4: Simplify right side
    815,276.97x = 264,514,024,578.18
  5. Step 5: Solve for x
    x = 264,514,024,578.18/815,276.97
  6. Step 6: Final answer
    x = 324,446.83

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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.