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Finding the Fourth Proportional to 2,769,685.60, 4,154,917.20 and 876,229.60

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Solution

The fourth proportional to 2,769,685.60, 4,154,917.20 and 876,229.60 is: 1,314,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769,685.60 : 4,154,917.20 = 876,229.60 : x
  2. Step 2: Convert to fraction form
    2,769,685.60/4,154,917.20 = 876,229.60/x
  3. Step 3: Cross multiply
    2,769,685.60x = 4,154,917.20 × 876,229.60
  4. Step 4: Simplify right side
    2,769,685.60x = 3,640,661,436,189.12
  5. Step 5: Solve for x
    x = 3,640,661,436,189.12/2,769,685.60
  6. Step 6: Final answer
    x = 1,314,467.40

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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.