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Finding the Fourth Proportional to 646,561.35, 969,959.67 and 267,276.09

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Solution

The fourth proportional to 646,561.35, 969,959.67 and 267,276.09 is: 400,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,561.35 : 969,959.67 = 267,276.09 : x
  2. Step 2: Convert to fraction form
    646,561.35/969,959.67 = 267,276.09/x
  3. Step 3: Cross multiply
    646,561.35x = 969,959.67 × 267,276.09
  4. Step 4: Simplify right side
    646,561.35x = 259,247,028,055.29
  5. Step 5: Solve for x
    x = 259,247,028,055.29/646,561.35
  6. Step 6: Final answer
    x = 400,962.77

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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.