Home / 3,387,987.50-5,081,981.12-991,832.12

Finding the Fourth Proportional to 3,387,987.50, 5,081,981.12 and 991,832.12

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Solution

The fourth proportional to 3,387,987.50, 5,081,981.12 and 991,832.12 is: 1,487,748.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387,987.50 : 5,081,981.12 = 991,832.12 : x
  2. Step 2: Convert to fraction form
    3,387,987.50/5,081,981.12 = 991,832.12/x
  3. Step 3: Cross multiply
    3,387,987.50x = 5,081,981.12 × 991,832.12
  4. Step 4: Simplify right side
    3,387,987.50x = 5,040,472,115,795.37
  5. Step 5: Solve for x
    x = 5,040,472,115,795.37/3,387,987.50
  6. Step 6: Final answer
    x = 1,487,748.14

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Double scale
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Similar ratio
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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.