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Finding the Fourth Proportional to 439,171.67, 605,934 and 275,845.84

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Solution

The fourth proportional to 439,171.67, 605,934 and 275,845.84 is: 380,590.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,171.67 : 605,934 = 275,845.84 : x
  2. Step 2: Convert to fraction form
    439,171.67/605,934 = 275,845.84/x
  3. Step 3: Cross multiply
    439,171.67x = 605,934 × 275,845.84
  4. Step 4: Simplify right side
    439,171.67x = 167,144,371,699.73
  5. Step 5: Solve for x
    x = 167,144,371,699.73/439,171.67
  6. Step 6: Final answer
    x = 380,590.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.