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Finding the Fourth Proportional to 558,181.80, 770,300.28 and 303,540.48

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Solution

The fourth proportional to 558,181.80, 770,300.28 and 303,540.48 is: 418,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,181.80 : 770,300.28 = 303,540.48 : x
  2. Step 2: Convert to fraction form
    558,181.80/770,300.28 = 303,540.48/x
  3. Step 3: Cross multiply
    558,181.80x = 770,300.28 × 303,540.48
  4. Step 4: Simplify right side
    558,181.80x = 233,817,316,735.33
  5. Step 5: Solve for x
    x = 233,817,316,735.33/558,181.80
  6. Step 6: Final answer
    x = 418,890.97

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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.