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Finding the Fourth Proportional to 558,448.38, 770,655.09 and 303,800.58

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Solution

The fourth proportional to 558,448.38, 770,655.09 and 303,800.58 is: 419,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,448.38 : 770,655.09 = 303,800.58 : x
  2. Step 2: Convert to fraction form
    558,448.38/770,655.09 = 303,800.58/x
  3. Step 3: Cross multiply
    558,448.38x = 770,655.09 × 303,800.58
  4. Step 4: Simplify right side
    558,448.38x = 234,125,463,321.95
  5. Step 5: Solve for x
    x = 234,125,463,321.95/558,448.38
  6. Step 6: Final answer
    x = 419,242.80

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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.