Home / 721,840.60-1,082,906.70-248,573.80

Finding the Fourth Proportional to 721,840.60, 1,082,906.70 and 248,573.80

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Solution

The fourth proportional to 721,840.60, 1,082,906.70 and 248,573.80 is: 372,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,840.60 : 1,082,906.70 = 248,573.80 : x
  2. Step 2: Convert to fraction form
    721,840.60/1,082,906.70 = 248,573.80/x
  3. Step 3: Cross multiply
    721,840.60x = 1,082,906.70 × 248,573.80
  4. Step 4: Simplify right side
    721,840.60x = 269,182,233,464.46
  5. Step 5: Solve for x
    x = 269,182,233,464.46/721,840.60
  6. Step 6: Final answer
    x = 372,910.91

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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.