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Finding the Fourth Proportional to 419,934.18, 579,512.56 and 228,948.96

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Solution

The fourth proportional to 419,934.18, 579,512.56 and 228,948.96 is: 315,951.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,934.18 : 579,512.56 = 228,948.96 : x
  2. Step 2: Convert to fraction form
    419,934.18/579,512.56 = 228,948.96/x
  3. Step 3: Cross multiply
    419,934.18x = 579,512.56 × 228,948.96
  4. Step 4: Simplify right side
    419,934.18x = 132,678,797,918.94
  5. Step 5: Solve for x
    x = 132,678,797,918.94/419,934.18
  6. Step 6: Final answer
    x = 315,951.41

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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.