Home / 762,520.20-1,142,982.22-256,906.50

Finding the Fourth Proportional to 762,520.20, 1,142,982.22 and 256,906.50

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Solution

The fourth proportional to 762,520.20, 1,142,982.22 and 256,906.50 is: 385,090.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,520.20 : 1,142,982.22 = 256,906.50 : x
  2. Step 2: Convert to fraction form
    762,520.20/1,142,982.22 = 256,906.50/x
  3. Step 3: Cross multiply
    762,520.20x = 1,142,982.22 × 256,906.50
  4. Step 4: Simplify right side
    762,520.20x = 293,639,561,702.43
  5. Step 5: Solve for x
    x = 293,639,561,702.43/762,520.20
  6. Step 6: Final answer
    x = 385,090.86

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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.