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Finding the Fourth Proportional to 723,608, 998,591.52 and 401,332.16

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Solution

The fourth proportional to 723,608, 998,591.52 and 401,332.16 is: 553,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,608 : 998,591.52 = 401,332.16 : x
  2. Step 2: Convert to fraction form
    723,608/998,591.52 = 401,332.16/x
  3. Step 3: Cross multiply
    723,608x = 998,591.52 × 401,332.16
  4. Step 4: Simplify right side
    723,608x = 400,766,891,679.28
  5. Step 5: Solve for x
    x = 400,766,891,679.28/723,608
  6. Step 6: Final answer
    x = 553,845.30

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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.