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Finding the Fourth Proportional to 675,200.40, 1,012,954.20 and 394,573.20

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Solution

The fourth proportional to 675,200.40, 1,012,954.20 and 394,573.20 is: 591,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,200.40 : 1,012,954.20 = 394,573.20 : x
  2. Step 2: Convert to fraction form
    675,200.40/1,012,954.20 = 394,573.20/x
  3. Step 3: Cross multiply
    675,200.40x = 1,012,954.20 × 394,573.20
  4. Step 4: Simplify right side
    675,200.40x = 399,684,580,147.44
  5. Step 5: Solve for x
    x = 399,684,580,147.44/675,200.40
  6. Step 6: Final answer
    x = 591,949.56

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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.