Home / 722,198.10-996,632.76-399,908.19

Finding the Fourth Proportional to 722,198.10, 996,632.76 and 399,908.19

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Solution

The fourth proportional to 722,198.10, 996,632.76 and 399,908.19 is: 551,872.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,198.10 : 996,632.76 = 399,908.19 : x
  2. Step 2: Convert to fraction form
    722,198.10/996,632.76 = 399,908.19/x
  3. Step 3: Cross multiply
    722,198.10x = 996,632.76 × 399,908.19
  4. Step 4: Simplify right side
    722,198.10x = 398,561,600,527.79
  5. Step 5: Solve for x
    x = 398,561,600,527.79/722,198.10
  6. Step 6: Final answer
    x = 551,872.96

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1.5x scale

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.