Home / 987,175.20-1,482,512.40-763,080.60

Finding the Fourth Proportional to 987,175.20, 1,482,512.40 and 763,080.60

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Solution

The fourth proportional to 987,175.20, 1,482,512.40 and 763,080.60 is: 1,145,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,175.20 : 1,482,512.40 = 763,080.60 : x
  2. Step 2: Convert to fraction form
    987,175.20/1,482,512.40 = 763,080.60/x
  3. Step 3: Cross multiply
    987,175.20x = 1,482,512.40 × 763,080.60
  4. Step 4: Simplify right side
    987,175.20x = 1,131,276,451,699.44
  5. Step 5: Solve for x
    x = 1,131,276,451,699.44/987,175.20
  6. Step 6: Final answer
    x = 1,145,973.33

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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.