Home / 723,729.12-998,865.68-401,542.88

Finding the Fourth Proportional to 723,729.12, 998,865.68 and 401,542.88

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Solution

The fourth proportional to 723,729.12, 998,865.68 and 401,542.88 is: 554,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,729.12 : 998,865.68 = 401,542.88 : x
  2. Step 2: Convert to fraction form
    723,729.12/998,865.68 = 401,542.88/x
  3. Step 3: Cross multiply
    723,729.12x = 998,865.68 × 401,542.88
  4. Step 4: Simplify right side
    723,729.12x = 401,087,401,880.36
  5. Step 5: Solve for x
    x = 401,087,401,880.36/723,729.12
  6. Step 6: Final answer
    x = 554,195.47

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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.