Home / 765,822.26-1,149,442.64-387,009.56

Finding the Fourth Proportional to 765,822.26, 1,149,442.64 and 387,009.56

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Solution

The fourth proportional to 765,822.26, 1,149,442.64 and 387,009.56 is: 580,872.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,822.26 : 1,149,442.64 = 387,009.56 : x
  2. Step 2: Convert to fraction form
    765,822.26/1,149,442.64 = 387,009.56/x
  3. Step 3: Cross multiply
    765,822.26x = 1,149,442.64 × 387,009.56
  4. Step 4: Simplify right side
    765,822.26x = 444,845,290,351.64
  5. Step 5: Solve for x
    x = 444,845,290,351.64/765,822.26
  6. Step 6: Final answer
    x = 580,872.76

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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.