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Finding the Fourth Proportional to 558,433.87, 770,906.45 and 343,757.95

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Solution

The fourth proportional to 558,433.87, 770,906.45 and 343,757.95 is: 474,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,433.87 : 770,906.45 = 343,757.95 : x
  2. Step 2: Convert to fraction form
    558,433.87/770,906.45 = 343,757.95/x
  3. Step 3: Cross multiply
    558,433.87x = 770,906.45 × 343,757.95
  4. Step 4: Simplify right side
    558,433.87x = 265,005,215,320.46
  5. Step 5: Solve for x
    x = 265,005,215,320.46/558,433.87
  6. Step 6: Final answer
    x = 474,550.76

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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.