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Finding the Fourth Proportional to 419,873.64, 579,409.06 and 228,882.92

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Solution

The fourth proportional to 419,873.64, 579,409.06 and 228,882.92 is: 315,849.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,873.64 : 579,409.06 = 228,882.92 : x
  2. Step 2: Convert to fraction form
    419,873.64/579,409.06 = 228,882.92/x
  3. Step 3: Cross multiply
    419,873.64x = 579,409.06 × 228,882.92
  4. Step 4: Simplify right side
    419,873.64x = 132,616,837,527.26
  5. Step 5: Solve for x
    x = 132,616,837,527.26/419,873.64
  6. Step 6: Final answer
    x = 315,849.40

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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.