Home / 781,892.44-1,078,455.22-717,569.48

Finding the Fourth Proportional to 781,892.44, 1,078,455.22 and 717,569.48

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Solution

The fourth proportional to 781,892.44, 1,078,455.22 and 717,569.48 is: 989,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,892.44 : 1,078,455.22 = 717,569.48 : x
  2. Step 2: Convert to fraction form
    781,892.44/1,078,455.22 = 717,569.48/x
  3. Step 3: Cross multiply
    781,892.44x = 1,078,455.22 × 717,569.48
  4. Step 4: Simplify right side
    781,892.44x = 773,866,551,418.69
  5. Step 5: Solve for x
    x = 773,866,551,418.69/781,892.44
  6. Step 6: Final answer
    x = 989,735.30

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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.