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Finding the Fourth Proportional to 558,636.75, 770,930.87 and 303,988.14

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Solution

The fourth proportional to 558,636.75, 770,930.87 and 303,988.14 is: 419,510.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,636.75 : 770,930.87 = 303,988.14 : x
  2. Step 2: Convert to fraction form
    558,636.75/770,930.87 = 303,988.14/x
  3. Step 3: Cross multiply
    558,636.75x = 770,930.87 × 303,988.14
  4. Step 4: Simplify right side
    558,636.75x = 234,353,839,719.94
  5. Step 5: Solve for x
    x = 234,353,839,719.94/558,636.75
  6. Step 6: Final answer
    x = 419,510.24

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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.