Home / 722,204.11-996,629.42-399,907.29

Finding the Fourth Proportional to 722,204.11, 996,629.42 and 399,907.29

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Solution

The fourth proportional to 722,204.11, 996,629.42 and 399,907.29 is: 551,865.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,204.11 : 996,629.42 = 399,907.29 : x
  2. Step 2: Convert to fraction form
    722,204.11/996,629.42 = 399,907.29/x
  3. Step 3: Cross multiply
    722,204.11x = 996,629.42 × 399,907.29
  4. Step 4: Simplify right side
    722,204.11x = 398,559,370,486.47
  5. Step 5: Solve for x
    x = 398,559,370,486.47/722,204.11
  6. Step 6: Final answer
    x = 551,865.28

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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.