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Finding the Fourth Proportional to 522,190, 720,622.92 and 295,850.80

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Solution

The fourth proportional to 522,190, 720,622.92 and 295,850.80 is: 408,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,190 : 720,622.92 = 295,850.80 : x
  2. Step 2: Convert to fraction form
    522,190/720,622.92 = 295,850.80/x
  3. Step 3: Cross multiply
    522,190x = 720,622.92 × 295,850.80
  4. Step 4: Simplify right side
    522,190x = 213,196,867,380.34
  5. Step 5: Solve for x
    x = 213,196,867,380.34/522,190
  6. Step 6: Final answer
    x = 408,274.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.