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Finding the Fourth Proportional to 723,615.39, 998,650.52 and 401,429.25

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Solution

The fourth proportional to 723,615.39, 998,650.52 and 401,429.25 is: 554,006.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,615.39 : 998,650.52 = 401,429.25 : x
  2. Step 2: Convert to fraction form
    723,615.39/998,650.52 = 401,429.25/x
  3. Step 3: Cross multiply
    723,615.39x = 998,650.52 × 401,429.25
  4. Step 4: Simplify right side
    723,615.39x = 400,887,528,753.92
  5. Step 5: Solve for x
    x = 400,887,528,753.92/723,615.39
  6. Step 6: Final answer
    x = 554,006.36

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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.