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Finding the Fourth Proportional to 538,847.20, 743,614.32 and 297,138.34

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Solution

The fourth proportional to 538,847.20, 743,614.32 and 297,138.34 is: 410,053.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,847.20 : 743,614.32 = 297,138.34 : x
  2. Step 2: Convert to fraction form
    538,847.20/743,614.32 = 297,138.34/x
  3. Step 3: Cross multiply
    538,847.20x = 743,614.32 × 297,138.34
  4. Step 4: Simplify right side
    538,847.20x = 220,956,324,645.03
  5. Step 5: Solve for x
    x = 220,956,324,645.03/538,847.20
  6. Step 6: Final answer
    x = 410,053.77

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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.