Home / 3,646,515.40-5,469,773.10-987,123.40

Finding the Fourth Proportional to 3,646,515.40, 5,469,773.10 and 987,123.40

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Solution

The fourth proportional to 3,646,515.40, 5,469,773.10 and 987,123.40 is: 1,480,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646,515.40 : 5,469,773.10 = 987,123.40 : x
  2. Step 2: Convert to fraction form
    3,646,515.40/5,469,773.10 = 987,123.40/x
  3. Step 3: Cross multiply
    3,646,515.40x = 5,469,773.10 × 987,123.40
  4. Step 4: Simplify right side
    3,646,515.40x = 5,399,341,019,700.54
  5. Step 5: Solve for x
    x = 5,399,341,019,700.54/3,646,515.40
  6. Step 6: Final answer
    x = 1,480,685.10

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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.