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Finding the Fourth Proportional to 558,040.92, 770,092.68 and 303,392.12

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Solution

The fourth proportional to 558,040.92, 770,092.68 and 303,392.12 is: 418,679.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,040.92 : 770,092.68 = 303,392.12 : x
  2. Step 2: Convert to fraction form
    558,040.92/770,092.68 = 303,392.12/x
  3. Step 3: Cross multiply
    558,040.92x = 770,092.68 × 303,392.12
  4. Step 4: Simplify right side
    558,040.92x = 233,640,046,931.22
  5. Step 5: Solve for x
    x = 233,640,046,931.22/558,040.92
  6. Step 6: Final answer
    x = 418,679.06

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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.