Home / 785,223.88-1,083,481.92-490,839.16

Finding the Fourth Proportional to 785,223.88, 1,083,481.92 and 490,839.16

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Solution

The fourth proportional to 785,223.88, 1,083,481.92 and 490,839.16 is: 677,278.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,223.88 : 1,083,481.92 = 490,839.16 : x
  2. Step 2: Convert to fraction form
    785,223.88/1,083,481.92 = 490,839.16/x
  3. Step 3: Cross multiply
    785,223.88x = 1,083,481.92 × 490,839.16
  4. Step 4: Simplify right side
    785,223.88x = 531,815,348,686.81
  5. Step 5: Solve for x
    x = 531,815,348,686.81/785,223.88
  6. Step 6: Final answer
    x = 677,278.63

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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.