Home / 987,181.20-1,482,521.40-763,086.60

Finding the Fourth Proportional to 987,181.20, 1,482,521.40 and 763,086.60

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Solution

The fourth proportional to 987,181.20, 1,482,521.40 and 763,086.60 is: 1,145,982.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,181.20 : 1,482,521.40 = 763,086.60 : x
  2. Step 2: Convert to fraction form
    987,181.20/1,482,521.40 = 763,086.60/x
  3. Step 3: Cross multiply
    987,181.20x = 1,482,521.40 × 763,086.60
  4. Step 4: Simplify right side
    987,181.20x = 1,131,292,214,553.24
  5. Step 5: Solve for x
    x = 1,131,292,214,553.24/987,181.20
  6. Step 6: Final answer
    x = 1,145,982.33

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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.