Home / 1,939,769.25-2,676,689.87-1,080,409.47

Finding the Fourth Proportional to 1,939,769.25, 2,676,689.87 and 1,080,409.47

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Solution

The fourth proportional to 1,939,769.25, 2,676,689.87 and 1,080,409.47 is: 1,490,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,769.25 : 2,676,689.87 = 1,080,409.47 : x
  2. Step 2: Convert to fraction form
    1,939,769.25/2,676,689.87 = 1,080,409.47/x
  3. Step 3: Cross multiply
    1,939,769.25x = 2,676,689.87 × 1,080,409.47
  4. Step 4: Simplify right side
    1,939,769.25x = 2,891,921,078,399.02
  5. Step 5: Solve for x
    x = 2,891,921,078,399.02/1,939,769.25
  6. Step 6: Final answer
    x = 1,490,858.30

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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.