Home / 664,501.20-996,897.60-215,145.60

Finding the Fourth Proportional to 664,501.20, 996,897.60 and 215,145.60

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Solution

The fourth proportional to 664,501.20, 996,897.60 and 215,145.60 is: 322,765.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,501.20 : 996,897.60 = 215,145.60 : x
  2. Step 2: Convert to fraction form
    664,501.20/996,897.60 = 215,145.60/x
  3. Step 3: Cross multiply
    664,501.20x = 996,897.60 × 215,145.60
  4. Step 4: Simplify right side
    664,501.20x = 214,478,132,290.56
  5. Step 5: Solve for x
    x = 214,478,132,290.56/664,501.20
  6. Step 6: Final answer
    x = 322,765.61

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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.