Home / 722,110.89-996,544.16-399,821.01

Finding the Fourth Proportional to 722,110.89, 996,544.16 and 399,821.01

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Solution

The fourth proportional to 722,110.89, 996,544.16 and 399,821.01 is: 551,770.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,110.89 : 996,544.16 = 399,821.01 : x
  2. Step 2: Convert to fraction form
    722,110.89/996,544.16 = 399,821.01/x
  3. Step 3: Cross multiply
    722,110.89x = 996,544.16 × 399,821.01
  4. Step 4: Simplify right side
    722,110.89x = 398,439,290,561.70
  5. Step 5: Solve for x
    x = 398,439,290,561.70/722,110.89
  6. Step 6: Final answer
    x = 551,770.23

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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.