Home / 1,287,042.30-1,776,118.64-714,081.10

Finding the Fourth Proportional to 1,287,042.30, 1,776,118.64 and 714,081.10

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Solution

The fourth proportional to 1,287,042.30, 1,776,118.64 and 714,081.10 is: 985,432.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,042.30 : 1,776,118.64 = 714,081.10 : x
  2. Step 2: Convert to fraction form
    1,287,042.30/1,776,118.64 = 714,081.10/x
  3. Step 3: Cross multiply
    1,287,042.30x = 1,776,118.64 × 714,081.10
  4. Step 4: Simplify right side
    1,287,042.30x = 1,268,292,752,181.70
  5. Step 5: Solve for x
    x = 1,268,292,752,181.70/1,287,042.30
  6. Step 6: Final answer
    x = 985,432.07

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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.