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Finding the Fourth Proportional to 483,902.06, 667,822.25 and 290,317.05

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Solution

The fourth proportional to 483,902.06, 667,822.25 and 290,317.05 is: 400,659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,902.06 : 667,822.25 = 290,317.05 : x
  2. Step 2: Convert to fraction form
    483,902.06/667,822.25 = 290,317.05/x
  3. Step 3: Cross multiply
    483,902.06x = 667,822.25 × 290,317.05
  4. Step 4: Simplify right side
    483,902.06x = 193,880,187,141.46
  5. Step 5: Solve for x
    x = 193,880,187,141.46/483,902.06
  6. Step 6: Final answer
    x = 400,659.98

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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.