Home / 664,822.20-997,233.30-215,542.20

Finding the Fourth Proportional to 664,822.20, 997,233.30 and 215,542.20

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Solution

The fourth proportional to 664,822.20, 997,233.30 and 215,542.20 is: 323,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,822.20 : 997,233.30 = 215,542.20 : x
  2. Step 2: Convert to fraction form
    664,822.20/997,233.30 = 215,542.20/x
  3. Step 3: Cross multiply
    664,822.20x = 997,233.30 × 215,542.20
  4. Step 4: Simplify right side
    664,822.20x = 214,945,859,395.26
  5. Step 5: Solve for x
    x = 214,945,859,395.26/664,822.20
  6. Step 6: Final answer
    x = 323,313.30

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Double scale
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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.