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Finding the Fourth Proportional to 424,818.91, 585,951.55 and 279,578.42

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Solution

The fourth proportional to 424,818.91, 585,951.55 and 279,578.42 is: 385,621.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,818.91 : 585,951.55 = 279,578.42 : x
  2. Step 2: Convert to fraction form
    424,818.91/585,951.55 = 279,578.42/x
  3. Step 3: Cross multiply
    424,818.91x = 585,951.55 × 279,578.42
  4. Step 4: Simplify right side
    424,818.91x = 163,819,404,217.90
  5. Step 5: Solve for x
    x = 163,819,404,217.90/424,818.91
  6. Step 6: Final answer
    x = 385,621.74

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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.