Home / 987,247.20-1,482,620.40-763,152.60

Finding the Fourth Proportional to 987,247.20, 1,482,620.40 and 763,152.60

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Solution

The fourth proportional to 987,247.20, 1,482,620.40 and 763,152.60 is: 1,146,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,247.20 : 1,482,620.40 = 763,152.60 : x
  2. Step 2: Convert to fraction form
    987,247.20/1,482,620.40 = 763,152.60/x
  3. Step 3: Cross multiply
    987,247.20x = 1,482,620.40 × 763,152.60
  4. Step 4: Simplify right side
    987,247.20x = 1,131,465,613,073.04
  5. Step 5: Solve for x
    x = 1,131,465,613,073.04/987,247.20
  6. Step 6: Final answer
    x = 1,146,081.36

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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.