Home / 979,854.55-1,469,781.27-305,993.60

Finding the Fourth Proportional to 979,854.55, 1,469,781.27 and 305,993.60

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Solution

The fourth proportional to 979,854.55, 1,469,781.27 and 305,993.60 is: 458,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,854.55 : 1,469,781.27 = 305,993.60 : x
  2. Step 2: Convert to fraction form
    979,854.55/1,469,781.27 = 305,993.60/x
  3. Step 3: Cross multiply
    979,854.55x = 1,469,781.27 × 305,993.60
  4. Step 4: Simplify right side
    979,854.55x = 449,743,654,670.97
  5. Step 5: Solve for x
    x = 449,743,654,670.97/979,854.55
  6. Step 6: Final answer
    x = 458,990.22

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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.