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Finding the Fourth Proportional to 978,850.80, 1,468,276.20 and 829,551.60

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Solution

The fourth proportional to 978,850.80, 1,468,276.20 and 829,551.60 is: 1,244,327.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,850.80 : 1,468,276.20 = 829,551.60 : x
  2. Step 2: Convert to fraction form
    978,850.80/1,468,276.20 = 829,551.60/x
  3. Step 3: Cross multiply
    978,850.80x = 1,468,276.20 × 829,551.60
  4. Step 4: Simplify right side
    978,850.80x = 1,218,010,870,951.92
  5. Step 5: Solve for x
    x = 1,218,010,870,951.92/978,850.80
  6. Step 6: Final answer
    x = 1,244,327.40

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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.