Home / 772,185.31-1,157,589.07-392,893.90

Finding the Fourth Proportional to 772,185.31, 1,157,589.07 and 392,893.90

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Solution

The fourth proportional to 772,185.31, 1,157,589.07 and 392,893.90 is: 588,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,185.31 : 1,157,589.07 = 392,893.90 : x
  2. Step 2: Convert to fraction form
    772,185.31/1,157,589.07 = 392,893.90/x
  3. Step 3: Cross multiply
    772,185.31x = 1,157,589.07 × 392,893.90
  4. Step 4: Simplify right side
    772,185.31x = 454,809,680,433.47
  5. Step 5: Solve for x
    x = 454,809,680,433.47/772,185.31
  6. Step 6: Final answer
    x = 588,990.33

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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.