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Finding the Fourth Proportional to 488,419.11, 731,742.75 and 360,651.69

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Solution

The fourth proportional to 488,419.11, 731,742.75 and 360,651.69 is: 540,323.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,419.11 : 731,742.75 = 360,651.69 : x
  2. Step 2: Convert to fraction form
    488,419.11/731,742.75 = 360,651.69/x
  3. Step 3: Cross multiply
    488,419.11x = 731,742.75 × 360,651.69
  4. Step 4: Simplify right side
    488,419.11x = 263,904,259,432.75
  5. Step 5: Solve for x
    x = 263,904,259,432.75/488,419.11
  6. Step 6: Final answer
    x = 540,323.37

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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.