Home / 908,945.80-1,363,418.70-269,272.60

Finding the Fourth Proportional to 908,945.80, 1,363,418.70 and 269,272.60

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Solution

The fourth proportional to 908,945.80, 1,363,418.70 and 269,272.60 is: 403,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,945.80 : 1,363,418.70 = 269,272.60 : x
  2. Step 2: Convert to fraction form
    908,945.80/1,363,418.70 = 269,272.60/x
  3. Step 3: Cross multiply
    908,945.80x = 1,363,418.70 × 269,272.60
  4. Step 4: Simplify right side
    908,945.80x = 367,131,298,237.62
  5. Step 5: Solve for x
    x = 367,131,298,237.62/908,945.80
  6. Step 6: Final answer
    x = 403,908.90

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Double scale
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Similar ratio
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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.