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Finding the Fourth Proportional to 723,558, 998,510.04 and 401,317.44

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Solution

The fourth proportional to 723,558, 998,510.04 and 401,317.44 is: 553,818.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,558 : 998,510.04 = 401,317.44 : x
  2. Step 2: Convert to fraction form
    723,558/998,510.04 = 401,317.44/x
  3. Step 3: Cross multiply
    723,558x = 998,510.04 × 401,317.44
  4. Step 4: Simplify right side
    723,558x = 400,719,493,067.10
  5. Step 5: Solve for x
    x = 400,719,493,067.10/723,558
  6. Step 6: Final answer
    x = 553,818.07

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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.