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Finding the Fourth Proportional to 493,471.72, 680,991.78 and 267,118.12

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Solution

The fourth proportional to 493,471.72, 680,991.78 and 267,118.12 is: 368,623.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,471.72 : 680,991.78 = 267,118.12 : x
  2. Step 2: Convert to fraction form
    493,471.72/680,991.78 = 267,118.12/x
  3. Step 3: Cross multiply
    493,471.72x = 680,991.78 × 267,118.12
  4. Step 4: Simplify right side
    493,471.72x = 181,905,244,009.05
  5. Step 5: Solve for x
    x = 181,905,244,009.05/493,471.72
  6. Step 6: Final answer
    x = 368,623.44

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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.