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Finding the Fourth Proportional to 494,781, 682,799.10 and 268,426.50

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Solution

The fourth proportional to 494,781, 682,799.10 and 268,426.50 is: 370,429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,781 : 682,799.10 = 268,426.50 : x
  2. Step 2: Convert to fraction form
    494,781/682,799.10 = 268,426.50/x
  3. Step 3: Cross multiply
    494,781x = 682,799.10 × 268,426.50
  4. Step 4: Simplify right side
    494,781x = 183,281,372,616.15
  5. Step 5: Solve for x
    x = 183,281,372,616.15/494,781
  6. Step 6: Final answer
    x = 370,429.29

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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.