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Finding the Fourth Proportional to 723,679.58, 998,797.39 and 401,493.47

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Solution

The fourth proportional to 723,679.58, 998,797.39 and 401,493.47 is: 554,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,679.58 : 998,797.39 = 401,493.47 : x
  2. Step 2: Convert to fraction form
    723,679.58/998,797.39 = 401,493.47/x
  3. Step 3: Cross multiply
    723,679.58x = 998,797.39 × 401,493.47
  4. Step 4: Simplify right side
    723,679.58x = 401,010,631,431.30
  5. Step 5: Solve for x
    x = 401,010,631,431.30/723,679.58
  6. Step 6: Final answer
    x = 554,127.33

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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.