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Finding the Fourth Proportional to 629,672.80, 944,422.80 and 208,904.80

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Solution

The fourth proportional to 629,672.80, 944,422.80 and 208,904.80 is: 313,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,672.80 : 944,422.80 = 208,904.80 : x
  2. Step 2: Convert to fraction form
    629,672.80/944,422.80 = 208,904.80/x
  3. Step 3: Cross multiply
    629,672.80x = 944,422.80 × 208,904.80
  4. Step 4: Simplify right side
    629,672.80x = 197,294,456,149.44
  5. Step 5: Solve for x
    x = 197,294,456,149.44/629,672.80
  6. Step 6: Final answer
    x = 313,328.54

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1.5x scale

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.