Home / 1,985,864.96-2,740,561.92-1,080,481.28

Finding the Fourth Proportional to 1,985,864.96, 2,740,561.92 and 1,080,481.28

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Solution

The fourth proportional to 1,985,864.96, 2,740,561.92 and 1,080,481.28 is: 1,491,101.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,864.96 : 2,740,561.92 = 1,080,481.28 : x
  2. Step 2: Convert to fraction form
    1,985,864.96/2,740,561.92 = 1,080,481.28/x
  3. Step 3: Cross multiply
    1,985,864.96x = 2,740,561.92 × 1,080,481.28
  4. Step 4: Simplify right side
    1,985,864.96x = 2,961,125,851,240.86
  5. Step 5: Solve for x
    x = 2,961,125,851,240.86/1,985,864.96
  6. Step 6: Final answer
    x = 1,491,101.31

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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.