Home / 878,105.49-1,317,248.58-331,458.34

Finding the Fourth Proportional to 878,105.49, 1,317,248.58 and 331,458.34

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Solution

The fourth proportional to 878,105.49, 1,317,248.58 and 331,458.34 is: 497,221.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,105.49 : 1,317,248.58 = 331,458.34 : x
  2. Step 2: Convert to fraction form
    878,105.49/1,317,248.58 = 331,458.34/x
  3. Step 3: Cross multiply
    878,105.49x = 1,317,248.58 × 331,458.34
  4. Step 4: Simplify right side
    878,105.49x = 436,613,021,936.56
  5. Step 5: Solve for x
    x = 436,613,021,936.56/878,105.49
  6. Step 6: Final answer
    x = 497,221.61

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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.