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Finding the Fourth Proportional to 439,376.62, 606,311.14 and 245,750.79

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Solution

The fourth proportional to 439,376.62, 606,311.14 and 245,750.79 is: 339,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,376.62 : 606,311.14 = 245,750.79 : x
  2. Step 2: Convert to fraction form
    439,376.62/606,311.14 = 245,750.79/x
  3. Step 3: Cross multiply
    439,376.62x = 606,311.14 × 245,750.79
  4. Step 4: Simplify right side
    439,376.62x = 149,001,441,640.80
  5. Step 5: Solve for x
    x = 149,001,441,640.80/439,376.62
  6. Step 6: Final answer
    x = 339,120.10

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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.