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Finding the Fourth Proportional to 558,634.26, 770,908.78 and 303,981.06

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Solution

The fourth proportional to 558,634.26, 770,908.78 and 303,981.06 is: 419,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,634.26 : 770,908.78 = 303,981.06 : x
  2. Step 2: Convert to fraction form
    558,634.26/770,908.78 = 303,981.06/x
  3. Step 3: Cross multiply
    558,634.26x = 770,908.78 × 303,981.06
  4. Step 4: Simplify right side
    558,634.26x = 234,341,668,107.71
  5. Step 5: Solve for x
    x = 234,341,668,107.71/558,634.26
  6. Step 6: Final answer
    x = 419,490.33

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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.