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Finding the Fourth Proportional to 558,662.38, 838,158.80 and 322,174.78

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Solution

The fourth proportional to 558,662.38, 838,158.80 and 322,174.78 is: 483,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,662.38 : 838,158.80 = 322,174.78 : x
  2. Step 2: Convert to fraction form
    558,662.38/838,158.80 = 322,174.78/x
  3. Step 3: Cross multiply
    558,662.38x = 838,158.80 × 322,174.78
  4. Step 4: Simplify right side
    558,662.38x = 270,033,626,995.06
  5. Step 5: Solve for x
    x = 270,033,626,995.06/558,662.38
  6. Step 6: Final answer
    x = 483,357.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.