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Finding the Fourth Proportional to 419,612.52, 579,065.27 and 228,625.91

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Solution

The fourth proportional to 419,612.52, 579,065.27 and 228,625.91 is: 315,503.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,612.52 : 579,065.27 = 228,625.91 : x
  2. Step 2: Convert to fraction form
    419,612.52/579,065.27 = 228,625.91/x
  3. Step 3: Cross multiply
    419,612.52x = 579,065.27 × 228,625.91
  4. Step 4: Simplify right side
    419,612.52x = 132,389,324,303.15
  5. Step 5: Solve for x
    x = 132,389,324,303.15/419,612.52
  6. Step 6: Final answer
    x = 315,503.75

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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.