Home / 765,959.33-1,149,648.93-387,144.04

Finding the Fourth Proportional to 765,959.33, 1,149,648.93 and 387,144.04

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Solution

The fourth proportional to 765,959.33, 1,149,648.93 and 387,144.04 is: 581,074.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,959.33 : 1,149,648.93 = 387,144.04 : x
  2. Step 2: Convert to fraction form
    765,959.33/1,149,648.93 = 387,144.04/x
  3. Step 3: Cross multiply
    765,959.33x = 1,149,648.93 × 387,144.04
  4. Step 4: Simplify right side
    765,959.33x = 445,079,731,341.88
  5. Step 5: Solve for x
    x = 445,079,731,341.88/765,959.33
  6. Step 6: Final answer
    x = 581,074.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.