Home / 728,153.75-1,092,236.10-222,723.78

Finding the Fourth Proportional to 728,153.75, 1,092,236.10 and 222,723.78

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Solution

The fourth proportional to 728,153.75, 1,092,236.10 and 222,723.78 is: 334,087.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,153.75 : 1,092,236.10 = 222,723.78 : x
  2. Step 2: Convert to fraction form
    728,153.75/1,092,236.10 = 222,723.78/x
  3. Step 3: Cross multiply
    728,153.75x = 1,092,236.10 × 222,723.78
  4. Step 4: Simplify right side
    728,153.75x = 243,266,947,913.36
  5. Step 5: Solve for x
    x = 243,266,947,913.36/728,153.75
  6. Step 6: Final answer
    x = 334,087.34

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Double scale
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Similar ratio
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1.5x scale

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.