Home / 664,418.25-996,772.73-215,184.53

Finding the Fourth Proportional to 664,418.25, 996,772.73 and 215,184.53

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Solution

The fourth proportional to 664,418.25, 996,772.73 and 215,184.53 is: 322,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,418.25 : 996,772.73 = 215,184.53 : x
  2. Step 2: Convert to fraction form
    664,418.25/996,772.73 = 215,184.53/x
  3. Step 3: Cross multiply
    664,418.25x = 996,772.73 × 215,184.53
  4. Step 4: Simplify right side
    664,418.25x = 214,490,074,948.28
  5. Step 5: Solve for x
    x = 214,490,074,948.28/664,418.25
  6. Step 6: Final answer
    x = 322,823.87

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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.