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Finding the Fourth Proportional to 851,850.60, 1,277,626.03 and 311,995.32

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Solution

The fourth proportional to 851,850.60, 1,277,626.03 and 311,995.32 is: 467,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,850.60 : 1,277,626.03 = 311,995.32 : x
  2. Step 2: Convert to fraction form
    851,850.60/1,277,626.03 = 311,995.32/x
  3. Step 3: Cross multiply
    851,850.60x = 1,277,626.03 × 311,995.32
  4. Step 4: Simplify right side
    851,850.60x = 398,613,342,070.18
  5. Step 5: Solve for x
    x = 398,613,342,070.18/851,850.60
  6. Step 6: Final answer
    x = 467,938.09

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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.