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Finding the Fourth Proportional to 816,489.60, 1,224,151.20 and 366,842.40

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Solution

The fourth proportional to 816,489.60, 1,224,151.20 and 366,842.40 is: 550,001.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,489.60 : 1,224,151.20 = 366,842.40 : x
  2. Step 2: Convert to fraction form
    816,489.60/1,224,151.20 = 366,842.40/x
  3. Step 3: Cross multiply
    816,489.60x = 1,224,151.20 × 366,842.40
  4. Step 4: Simplify right side
    816,489.60x = 449,070,564,170.88
  5. Step 5: Solve for x
    x = 449,070,564,170.88/816,489.60
  6. Step 6: Final answer
    x = 550,001.57

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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.