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Finding the Fourth Proportional to 662,608.62, 994,071.69 and 213,371.82

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Solution

The fourth proportional to 662,608.62, 994,071.69 and 213,371.82 is: 320,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,608.62 : 994,071.69 = 213,371.82 : x
  2. Step 2: Convert to fraction form
    662,608.62/994,071.69 = 213,371.82/x
  3. Step 3: Cross multiply
    662,608.62x = 994,071.69 × 213,371.82
  4. Step 4: Simplify right side
    662,608.62x = 212,106,885,705.78
  5. Step 5: Solve for x
    x = 212,106,885,705.78/662,608.62
  6. Step 6: Final answer
    x = 320,108.85

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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.