Home / 647,227.20-970,685.28-331,521.60

Finding the Fourth Proportional to 647,227.20, 970,685.28 and 331,521.60

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Solution

The fourth proportional to 647,227.20, 970,685.28 and 331,521.60 is: 497,202.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,227.20 : 970,685.28 = 331,521.60 : x
  2. Step 2: Convert to fraction form
    647,227.20/970,685.28 = 331,521.60/x
  3. Step 3: Cross multiply
    647,227.20x = 970,685.28 × 331,521.60
  4. Step 4: Simplify right side
    647,227.20x = 321,803,137,122.05
  5. Step 5: Solve for x
    x = 321,803,137,122.05/647,227.20
  6. Step 6: Final answer
    x = 497,202.74

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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.