Home / 767,380.46-1,151,101.06-287,558.12

Finding the Fourth Proportional to 767,380.46, 1,151,101.06 and 287,558.12

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Solution

The fourth proportional to 767,380.46, 1,151,101.06 and 287,558.12 is: 431,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,380.46 : 1,151,101.06 = 287,558.12 : x
  2. Step 2: Convert to fraction form
    767,380.46/1,151,101.06 = 287,558.12/x
  3. Step 3: Cross multiply
    767,380.46x = 1,151,101.06 × 287,558.12
  4. Step 4: Simplify right side
    767,380.46x = 331,008,458,902.47
  5. Step 5: Solve for x
    x = 331,008,458,902.47/767,380.46
  6. Step 6: Final answer
    x = 431,348.57

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Double scale
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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.