Home / 664,828.90-997,251.45-215,546.20

Finding the Fourth Proportional to 664,828.90, 997,251.45 and 215,546.20

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Solution

The fourth proportional to 664,828.90, 997,251.45 and 215,546.20 is: 323,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,828.90 : 997,251.45 = 215,546.20 : x
  2. Step 2: Convert to fraction form
    664,828.90/997,251.45 = 215,546.20/x
  3. Step 3: Cross multiply
    664,828.90x = 997,251.45 × 215,546.20
  4. Step 4: Simplify right side
    664,828.90x = 214,953,760,491.99
  5. Step 5: Solve for x
    x = 214,953,760,491.99/664,828.90
  6. Step 6: Final answer
    x = 323,321.93

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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.