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Finding the Fourth Proportional to 701,843.80, 1,052,765.70 and 613,270.30

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Solution

The fourth proportional to 701,843.80, 1,052,765.70 and 613,270.30 is: 919,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,843.80 : 1,052,765.70 = 613,270.30 : x
  2. Step 2: Convert to fraction form
    701,843.80/1,052,765.70 = 613,270.30/x
  3. Step 3: Cross multiply
    701,843.80x = 1,052,765.70 × 613,270.30
  4. Step 4: Simplify right side
    701,843.80x = 645,629,936,668.71
  5. Step 5: Solve for x
    x = 645,629,936,668.71/701,843.80
  6. Step 6: Final answer
    x = 919,905.45

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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.