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Finding the Fourth Proportional to 539,919.52, 810,046.42 and 324,019.33

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Solution

The fourth proportional to 539,919.52, 810,046.42 and 324,019.33 is: 486,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,919.52 : 810,046.42 = 324,019.33 : x
  2. Step 2: Convert to fraction form
    539,919.52/810,046.42 = 324,019.33/x
  3. Step 3: Cross multiply
    539,919.52x = 810,046.42 × 324,019.33
  4. Step 4: Simplify right side
    539,919.52x = 262,470,695,442.13
  5. Step 5: Solve for x
    x = 262,470,695,442.13/539,919.52
  6. Step 6: Final answer
    x = 486,129.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.