Home / 1,281,119.90-1,767,891.69-758,169.52

Finding the Fourth Proportional to 1,281,119.90, 1,767,891.69 and 758,169.52

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Solution

The fourth proportional to 1,281,119.90, 1,767,891.69 and 758,169.52 is: 1,046,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,119.90 : 1,767,891.69 = 758,169.52 : x
  2. Step 2: Convert to fraction form
    1,281,119.90/1,767,891.69 = 758,169.52/x
  3. Step 3: Cross multiply
    1,281,119.90x = 1,767,891.69 × 758,169.52
  4. Step 4: Simplify right side
    1,281,119.90x = 1,340,361,589,599.56
  5. Step 5: Solve for x
    x = 1,340,361,589,599.56/1,281,119.90
  6. Step 6: Final answer
    x = 1,046,242.12

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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.