Home / 791,830.80-1,187,625.96-259,340.04

Finding the Fourth Proportional to 791,830.80, 1,187,625.96 and 259,340.04

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Solution

The fourth proportional to 791,830.80, 1,187,625.96 and 259,340.04 is: 388,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,830.80 : 1,187,625.96 = 259,340.04 : x
  2. Step 2: Convert to fraction form
    791,830.80/1,187,625.96 = 259,340.04/x
  3. Step 3: Cross multiply
    791,830.80x = 1,187,625.96 × 259,340.04
  4. Step 4: Simplify right side
    791,830.80x = 307,998,963,971.44
  5. Step 5: Solve for x
    x = 307,998,963,971.44/791,830.80
  6. Step 6: Final answer
    x = 388,970.68

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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.