Home / 3,387,987.75-5,081,981.49-991,832.37

Finding the Fourth Proportional to 3,387,987.75, 5,081,981.49 and 991,832.37

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Solution

The fourth proportional to 3,387,987.75, 5,081,981.49 and 991,832.37 is: 1,487,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387,987.75 : 5,081,981.49 = 991,832.37 : x
  2. Step 2: Convert to fraction form
    3,387,987.75/5,081,981.49 = 991,832.37/x
  3. Step 3: Cross multiply
    3,387,987.75x = 5,081,981.49 × 991,832.37
  4. Step 4: Simplify right side
    3,387,987.75x = 5,040,473,745,522.83
  5. Step 5: Solve for x
    x = 5,040,473,745,522.83/3,387,987.75
  6. Step 6: Final answer
    x = 1,487,748.52

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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.