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Finding the Fourth Proportional to 723,855.86, 998,922.26 and 401,565.96

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Solution

The fourth proportional to 723,855.86, 998,922.26 and 401,565.96 is: 554,161.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,855.86 : 998,922.26 = 401,565.96 : x
  2. Step 2: Convert to fraction form
    723,855.86/998,922.26 = 401,565.96/x
  3. Step 3: Cross multiply
    723,855.86x = 998,922.26 × 401,565.96
  4. Step 4: Simplify right side
    723,855.86x = 401,133,174,294.44
  5. Step 5: Solve for x
    x = 401,133,174,294.44/723,855.86
  6. Step 6: Final answer
    x = 554,161.68

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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.