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Finding the Fourth Proportional to 419,993.92, 579,578.88 and 229,011.04

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Solution

The fourth proportional to 419,993.92, 579,578.88 and 229,011.04 is: 316,028.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,993.92 : 579,578.88 = 229,011.04 : x
  2. Step 2: Convert to fraction form
    419,993.92/579,578.88 = 229,011.04/x
  3. Step 3: Cross multiply
    419,993.92x = 579,578.88 × 229,011.04
  4. Step 4: Simplify right side
    419,993.92x = 132,729,962,070.84
  5. Step 5: Solve for x
    x = 132,729,962,070.84/419,993.92
  6. Step 6: Final answer
    x = 316,028.29

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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.