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Finding the Fourth Proportional to 419,924.43, 579,504.75 and 228,939.12

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Solution

The fourth proportional to 419,924.43, 579,504.75 and 228,939.12 is: 315,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,924.43 : 579,504.75 = 228,939.12 : x
  2. Step 2: Convert to fraction form
    419,924.43/579,504.75 = 228,939.12/x
  3. Step 3: Cross multiply
    419,924.43x = 579,504.75 × 228,939.12
  4. Step 4: Simplify right side
    419,924.43x = 132,671,307,500.82
  5. Step 5: Solve for x
    x = 132,671,307,500.82/419,924.43
  6. Step 6: Final answer
    x = 315,940.91

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1.5x scale

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.