Home / 634,043.35-949,487.32-443,612.80

Finding the Fourth Proportional to 634,043.35, 949,487.32 and 443,612.80

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Solution

The fourth proportional to 634,043.35, 949,487.32 and 443,612.80 is: 664,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,043.35 : 949,487.32 = 443,612.80 : x
  2. Step 2: Convert to fraction form
    634,043.35/949,487.32 = 443,612.80/x
  3. Step 3: Cross multiply
    634,043.35x = 949,487.32 × 443,612.80
  4. Step 4: Simplify right side
    634,043.35x = 421,204,728,589.70
  5. Step 5: Solve for x
    x = 421,204,728,589.70/634,043.35
  6. Step 6: Final answer
    x = 664,315.35

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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.