Home / 664,459.20-996,834.60-215,103.60

Finding the Fourth Proportional to 664,459.20, 996,834.60 and 215,103.60

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Solution

The fourth proportional to 664,459.20, 996,834.60 and 215,103.60 is: 322,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,459.20 : 996,834.60 = 215,103.60 : x
  2. Step 2: Convert to fraction form
    664,459.20/996,834.60 = 215,103.60/x
  3. Step 3: Cross multiply
    664,459.20x = 996,834.60 × 215,103.60
  4. Step 4: Simplify right side
    664,459.20x = 214,422,711,064.56
  5. Step 5: Solve for x
    x = 214,422,711,064.56/664,459.20
  6. Step 6: Final answer
    x = 322,702.60

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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.