Home / 722,820.15-1,084,230.23-386,896.95

Finding the Fourth Proportional to 722,820.15, 1,084,230.23 and 386,896.95

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Solution

The fourth proportional to 722,820.15, 1,084,230.23 and 386,896.95 is: 580,345.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,820.15 : 1,084,230.23 = 386,896.95 : x
  2. Step 2: Convert to fraction form
    722,820.15/1,084,230.23 = 386,896.95/x
  3. Step 3: Cross multiply
    722,820.15x = 1,084,230.23 × 386,896.95
  4. Step 4: Simplify right side
    722,820.15x = 419,485,367,150.31
  5. Step 5: Solve for x
    x = 419,485,367,150.31/722,820.15
  6. Step 6: Final answer
    x = 580,345.43

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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.