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Finding the Fourth Proportional to 646,348.38, 969,965.44 and 225,624.26

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Solution

The fourth proportional to 646,348.38, 969,965.44 and 225,624.26 is: 338,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,348.38 : 969,965.44 = 225,624.26 : x
  2. Step 2: Convert to fraction form
    646,348.38/969,965.44 = 225,624.26/x
  3. Step 3: Cross multiply
    646,348.38x = 969,965.44 × 225,624.26
  4. Step 4: Simplify right side
    646,348.38x = 218,847,734,625.57
  5. Step 5: Solve for x
    x = 218,847,734,625.57/646,348.38
  6. Step 6: Final answer
    x = 338,590.98

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Double scale
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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.