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Finding the Fourth Proportional to 494,718, 682,711.20 and 268,364.40

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Solution

The fourth proportional to 494,718, 682,711.20 and 268,364.40 is: 370,343.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,718 : 682,711.20 = 268,364.40 : x
  2. Step 2: Convert to fraction form
    494,718/682,711.20 = 268,364.40/x
  3. Step 3: Cross multiply
    494,718x = 682,711.20 × 268,364.40
  4. Step 4: Simplify right side
    494,718x = 183,215,381,561.28
  5. Step 5: Solve for x
    x = 183,215,381,561.28/494,718
  6. Step 6: Final answer
    x = 370,343.07

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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.