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Finding the Fourth Proportional to 486,679.50, 729,539.46 and 170,914.98

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Solution

The fourth proportional to 486,679.50, 729,539.46 and 170,914.98 is: 256,203.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,679.50 : 729,539.46 = 170,914.98 : x
  2. Step 2: Convert to fraction form
    486,679.50/729,539.46 = 170,914.98/x
  3. Step 3: Cross multiply
    486,679.50x = 729,539.46 × 170,914.98
  4. Step 4: Simplify right side
    486,679.50x = 124,689,222,215.11
  5. Step 5: Solve for x
    x = 124,689,222,215.11/486,679.50
  6. Step 6: Final answer
    x = 256,203.97

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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.