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Finding the Fourth Proportional to 722,204.52, 996,642.12 and 399,914.52

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Solution

The fourth proportional to 722,204.52, 996,642.12 and 399,914.52 is: 551,881.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,204.52 : 996,642.12 = 399,914.52 : x
  2. Step 2: Convert to fraction form
    722,204.52/996,642.12 = 399,914.52/x
  3. Step 3: Cross multiply
    722,204.52x = 996,642.12 × 399,914.52
  4. Step 4: Simplify right side
    722,204.52x = 398,571,655,031.58
  5. Step 5: Solve for x
    x = 398,571,655,031.58/722,204.52
  6. Step 6: Final answer
    x = 551,881.97

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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.