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Finding the Fourth Proportional to 558,147.38, 770,243.38 and 303,500.39

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Solution

The fourth proportional to 558,147.38, 770,243.38 and 303,500.39 is: 418,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,147.38 : 770,243.38 = 303,500.39 : x
  2. Step 2: Convert to fraction form
    558,147.38/770,243.38 = 303,500.39/x
  3. Step 3: Cross multiply
    558,147.38x = 770,243.38 × 303,500.39
  4. Step 4: Simplify right side
    558,147.38x = 233,769,161,614.95
  5. Step 5: Solve for x
    x = 233,769,161,614.95/558,147.38
  6. Step 6: Final answer
    x = 418,830.53

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Double scale
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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.