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Finding the Fourth Proportional to 419,717.77, 579,193.68 and 228,727.06

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Solution

The fourth proportional to 419,717.77, 579,193.68 and 228,727.06 is: 315,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,717.77 : 579,193.68 = 228,727.06 : x
  2. Step 2: Convert to fraction form
    419,717.77/579,193.68 = 228,727.06/x
  3. Step 3: Cross multiply
    419,717.77x = 579,193.68 × 228,727.06
  4. Step 4: Simplify right side
    419,717.77x = 132,477,267,596.98
  5. Step 5: Solve for x
    x = 132,477,267,596.98/419,717.77
  6. Step 6: Final answer
    x = 315,634.16

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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.