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Finding the Fourth Proportional to 725,338.60, 998,727.78 and 602,996.20

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Solution

The fourth proportional to 725,338.60, 998,727.78 and 602,996.20 is: 830,273.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,338.60 : 998,727.78 = 602,996.20 : x
  2. Step 2: Convert to fraction form
    725,338.60/998,727.78 = 602,996.20/x
  3. Step 3: Cross multiply
    725,338.60x = 998,727.78 × 602,996.20
  4. Step 4: Simplify right side
    725,338.60x = 602,229,056,174.44
  5. Step 5: Solve for x
    x = 602,229,056,174.44/725,338.60
  6. Step 6: Final answer
    x = 830,273.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.