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Finding the Fourth Proportional to 445,522.20, 667,505.70 and 383,314.20

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Solution

The fourth proportional to 445,522.20, 667,505.70 and 383,314.20 is: 574,302.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,522.20 : 667,505.70 = 383,314.20 : x
  2. Step 2: Convert to fraction form
    445,522.20/667,505.70 = 383,314.20/x
  3. Step 3: Cross multiply
    445,522.20x = 667,505.70 × 383,314.20
  4. Step 4: Simplify right side
    445,522.20x = 255,864,413,390.94
  5. Step 5: Solve for x
    x = 255,864,413,390.94/445,522.20
  6. Step 6: Final answer
    x = 574,302.28

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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.