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Finding the Fourth Proportional to 561,874.14, 775,436.97 and 320,234.58

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Solution

The fourth proportional to 561,874.14, 775,436.97 and 320,234.58 is: 441,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,874.14 : 775,436.97 = 320,234.58 : x
  2. Step 2: Convert to fraction form
    561,874.14/775,436.97 = 320,234.58/x
  3. Step 3: Cross multiply
    561,874.14x = 775,436.97 × 320,234.58
  4. Step 4: Simplify right side
    561,874.14x = 248,321,732,404.42
  5. Step 5: Solve for x
    x = 248,321,732,404.42/561,874.14
  6. Step 6: Final answer
    x = 441,952.59

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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.