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Finding the Fourth Proportional to 558,323.12, 770,447.98 and 303,668.84

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Solution

The fourth proportional to 558,323.12, 770,447.98 and 303,668.84 is: 419,042.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,323.12 : 770,447.98 = 303,668.84 : x
  2. Step 2: Convert to fraction form
    558,323.12/770,447.98 = 303,668.84/x
  3. Step 3: Cross multiply
    558,323.12x = 770,447.98 × 303,668.84
  4. Step 4: Simplify right side
    558,323.12x = 233,961,044,366.94
  5. Step 5: Solve for x
    x = 233,961,044,366.94/558,323.12
  6. Step 6: Final answer
    x = 419,042.37

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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.