Home / 722,101.69-996,531.48-399,811.81

Finding the Fourth Proportional to 722,101.69, 996,531.48 and 399,811.81

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Solution

The fourth proportional to 722,101.69, 996,531.48 and 399,811.81 is: 551,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,101.69 : 996,531.48 = 399,811.81 : x
  2. Step 2: Convert to fraction form
    722,101.69/996,531.48 = 399,811.81/x
  3. Step 3: Cross multiply
    722,101.69x = 996,531.48 × 399,811.81
  4. Step 4: Simplify right side
    722,101.69x = 398,425,054,740.78
  5. Step 5: Solve for x
    x = 398,425,054,740.78/722,101.69
  6. Step 6: Final answer
    x = 551,757.54

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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.