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Finding the Fourth Proportional to 822,078.80, 1,231,951.80 and 607,169.60

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Solution

The fourth proportional to 822,078.80, 1,231,951.80 and 607,169.60 is: 909,892.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,078.80 : 1,231,951.80 = 607,169.60 : x
  2. Step 2: Convert to fraction form
    822,078.80/1,231,951.80 = 607,169.60/x
  3. Step 3: Cross multiply
    822,078.80x = 1,231,951.80 × 607,169.60
  4. Step 4: Simplify right side
    822,078.80x = 748,003,681,625.28
  5. Step 5: Solve for x
    x = 748,003,681,625.28/822,078.80
  6. Step 6: Final answer
    x = 909,892.92

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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.