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Finding the Fourth Proportional to 394,508.75, 592,181.62 and 320,522.20

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Solution

The fourth proportional to 394,508.75, 592,181.62 and 320,522.20 is: 481,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,508.75 : 592,181.62 = 320,522.20 : x
  2. Step 2: Convert to fraction form
    394,508.75/592,181.62 = 320,522.20/x
  3. Step 3: Cross multiply
    394,508.75x = 592,181.62 × 320,522.20
  4. Step 4: Simplify right side
    394,508.75x = 189,807,353,360.20
  5. Step 5: Solve for x
    x = 189,807,353,360.20/394,508.75
  6. Step 6: Final answer
    x = 481,123.31

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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.