Home / 722,106.28-996,537.77-399,816.33

Finding the Fourth Proportional to 722,106.28, 996,537.77 and 399,816.33

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Solution

The fourth proportional to 722,106.28, 996,537.77 and 399,816.33 is: 551,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,106.28 : 996,537.77 = 399,816.33 : x
  2. Step 2: Convert to fraction form
    722,106.28/996,537.77 = 399,816.33/x
  3. Step 3: Cross multiply
    722,106.28x = 996,537.77 × 399,816.33
  4. Step 4: Simplify right side
    722,106.28x = 398,432,073,907.78
  5. Step 5: Solve for x
    x = 398,432,073,907.78/722,106.28
  6. Step 6: Final answer
    x = 551,763.76

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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.