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Finding the Fourth Proportional to 439,379.28, 606,336.84 and 248,385.96

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Solution

The fourth proportional to 439,379.28, 606,336.84 and 248,385.96 is: 342,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,379.28 : 606,336.84 = 248,385.96 : x
  2. Step 2: Convert to fraction form
    439,379.28/606,336.84 = 248,385.96/x
  3. Step 3: Cross multiply
    439,379.28x = 606,336.84 × 248,385.96
  4. Step 4: Simplify right side
    439,379.28x = 150,605,558,086.77
  5. Step 5: Solve for x
    x = 150,605,558,086.77/439,379.28
  6. Step 6: Final answer
    x = 342,768.91

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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.