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Finding the Fourth Proportional to 419,726.07, 579,234.24 and 228,751.79

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Solution

The fourth proportional to 419,726.07, 579,234.24 and 228,751.79 is: 315,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,726.07 : 579,234.24 = 228,751.79 : x
  2. Step 2: Convert to fraction form
    419,726.07/579,234.24 = 228,751.79/x
  3. Step 3: Cross multiply
    419,726.07x = 579,234.24 × 228,751.79
  4. Step 4: Simplify right side
    419,726.07x = 132,500,866,333.12
  5. Step 5: Solve for x
    x = 132,500,866,333.12/419,726.07
  6. Step 6: Final answer
    x = 315,684.15

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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.