Home / 772,517.26-1,066,076.11-428,377.43

Finding the Fourth Proportional to 772,517.26, 1,066,076.11 and 428,377.43

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Solution

The fourth proportional to 772,517.26, 1,066,076.11 and 428,377.43 is: 591,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,517.26 : 1,066,076.11 = 428,377.43 : x
  2. Step 2: Convert to fraction form
    772,517.26/1,066,076.11 = 428,377.43/x
  3. Step 3: Cross multiply
    772,517.26x = 1,066,076.11 × 428,377.43
  4. Step 4: Simplify right side
    772,517.26x = 456,682,944,186.20
  5. Step 5: Solve for x
    x = 456,682,944,186.20/772,517.26
  6. Step 6: Final answer
    x = 591,162.12

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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.