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Finding the Fourth Proportional to 522,187, 720,618.78 and 295,847.80

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Solution

The fourth proportional to 522,187, 720,618.78 and 295,847.80 is: 408,270.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,187 : 720,618.78 = 295,847.80 : x
  2. Step 2: Convert to fraction form
    522,187/720,618.78 = 295,847.80/x
  3. Step 3: Cross multiply
    522,187x = 720,618.78 × 295,847.80
  4. Step 4: Simplify right side
    522,187x = 213,193,480,701.68
  5. Step 5: Solve for x
    x = 213,193,480,701.68/522,187
  6. Step 6: Final answer
    x = 408,270.37

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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.