Home / 741,218.18-1,022,990.82-469,311.38

Finding the Fourth Proportional to 741,218.18, 1,022,990.82 and 469,311.38

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Solution

The fourth proportional to 741,218.18, 1,022,990.82 and 469,311.38 is: 647,719.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,218.18 : 1,022,990.82 = 469,311.38 : x
  2. Step 2: Convert to fraction form
    741,218.18/1,022,990.82 = 469,311.38/x
  3. Step 3: Cross multiply
    741,218.18x = 1,022,990.82 × 469,311.38
  4. Step 4: Simplify right side
    741,218.18x = 480,101,233,461.53
  5. Step 5: Solve for x
    x = 480,101,233,461.53/741,218.18
  6. Step 6: Final answer
    x = 647,719.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.