Home / 1,987,132.32-2,741,815.44-1,127,625.12

Finding the Fourth Proportional to 1,987,132.32, 2,741,815.44 and 1,127,625.12

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Solution

The fourth proportional to 1,987,132.32, 2,741,815.44 and 1,127,625.12 is: 1,555,880.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,132.32 : 2,741,815.44 = 1,127,625.12 : x
  2. Step 2: Convert to fraction form
    1,987,132.32/2,741,815.44 = 1,127,625.12/x
  3. Step 3: Cross multiply
    1,987,132.32x = 2,741,815.44 × 1,127,625.12
  4. Step 4: Simplify right side
    1,987,132.32x = 3,091,739,964,547.85
  5. Step 5: Solve for x
    x = 3,091,739,964,547.85/1,987,132.32
  6. Step 6: Final answer
    x = 1,555,880.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.