Home / 3,987,257.40-5,980,850.46-1,255,010.90

Finding the Fourth Proportional to 3,987,257.40, 5,980,850.46 and 1,255,010.90

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Solution

The fourth proportional to 3,987,257.40, 5,980,850.46 and 1,255,010.90 is: 1,882,505.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,257.40 : 5,980,850.46 = 1,255,010.90 : x
  2. Step 2: Convert to fraction form
    3,987,257.40/5,980,850.46 = 1,255,010.90/x
  3. Step 3: Cross multiply
    3,987,257.40x = 5,980,850.46 × 1,255,010.90
  4. Step 4: Simplify right side
    3,987,257.40x = 7,506,032,488,665.76
  5. Step 5: Solve for x
    x = 7,506,032,488,665.76/3,987,257.40
  6. Step 6: Final answer
    x = 1,882,505.12

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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.