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Finding the Fourth Proportional to 835.43, 1,254.02 and 424.44

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Solution

The fourth proportional to 835.43, 1,254.02 and 424.44 is: 637.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    835.43 : 1,254.02 = 424.44 : x
  2. Step 2: Convert to fraction form
    835.43/1,254.02 = 424.44/x
  3. Step 3: Cross multiply
    835.43x = 1,254.02 × 424.44
  4. Step 4: Simplify right side
    835.43x = 532,254.13
  5. Step 5: Solve for x
    x = 532,254.13/835.43
  6. Step 6: Final answer
    x = 637.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.