Home / 1,939,719.78-2,676,896.35-1,080,280.04

Finding the Fourth Proportional to 1,939,719.78, 2,676,896.35 and 1,080,280.04

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Solution

The fourth proportional to 1,939,719.78, 2,676,896.35 and 1,080,280.04 is: 1,490,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,719.78 : 2,676,896.35 = 1,080,280.04 : x
  2. Step 2: Convert to fraction form
    1,939,719.78/2,676,896.35 = 1,080,280.04/x
  3. Step 3: Cross multiply
    1,939,719.78x = 2,676,896.35 × 1,080,280.04
  4. Step 4: Simplify right side
    1,939,719.78x = 2,891,797,679,968.67
  5. Step 5: Solve for x
    x = 2,891,797,679,968.67/1,939,719.78
  6. Step 6: Final answer
    x = 1,490,832.70

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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.