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Finding the Fourth Proportional to 419,793.48, 579,328.74 and 228,827.88

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Solution

The fourth proportional to 419,793.48, 579,328.74 and 228,827.88 is: 315,789.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,793.48 : 579,328.74 = 228,827.88 : x
  2. Step 2: Convert to fraction form
    419,793.48/579,328.74 = 228,827.88/x
  3. Step 3: Cross multiply
    419,793.48x = 579,328.74 × 228,827.88
  4. Step 4: Simplify right side
    419,793.48x = 132,566,567,397.27
  5. Step 5: Solve for x
    x = 132,566,567,397.27/419,793.48
  6. Step 6: Final answer
    x = 315,789.96

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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.