Home / 985,425.60-1,478,138.40-749,229.60

Finding the Fourth Proportional to 985,425.60, 1,478,138.40 and 749,229.60

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Solution

The fourth proportional to 985,425.60, 1,478,138.40 and 749,229.60 is: 1,123,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,425.60 : 1,478,138.40 = 749,229.60 : x
  2. Step 2: Convert to fraction form
    985,425.60/1,478,138.40 = 749,229.60/x
  3. Step 3: Cross multiply
    985,425.60x = 1,478,138.40 × 749,229.60
  4. Step 4: Simplify right side
    985,425.60x = 1,107,465,042,176.64
  5. Step 5: Solve for x
    x = 1,107,465,042,176.64/985,425.60
  6. Step 6: Final answer
    x = 1,123,844.40

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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.