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Finding the Fourth Proportional to 620,340.60, 930,292.20 and 283,542.60

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Solution

The fourth proportional to 620,340.60, 930,292.20 and 283,542.60 is: 425,213.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,340.60 : 930,292.20 = 283,542.60 : x
  2. Step 2: Convert to fraction form
    620,340.60/930,292.20 = 283,542.60/x
  3. Step 3: Cross multiply
    620,340.60x = 930,292.20 × 283,542.60
  4. Step 4: Simplify right side
    620,340.60x = 263,777,469,147.72
  5. Step 5: Solve for x
    x = 263,777,469,147.72/620,340.60
  6. Step 6: Final answer
    x = 425,213.94

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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.