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Finding the Fourth Proportional to 494,769.72, 682,780.80 and 268,415.28

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Solution

The fourth proportional to 494,769.72, 682,780.80 and 268,415.28 is: 370,412.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,769.72 : 682,780.80 = 268,415.28 : x
  2. Step 2: Convert to fraction form
    494,769.72/682,780.80 = 268,415.28/x
  3. Step 3: Cross multiply
    494,769.72x = 682,780.80 × 268,415.28
  4. Step 4: Simplify right side
    494,769.72x = 183,268,799,610.62
  5. Step 5: Solve for x
    x = 183,268,799,610.62/494,769.72
  6. Step 6: Final answer
    x = 370,412.32

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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.