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Finding the Fourth Proportional to 550,063.31, 759,086.44 and 308,346.04

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Solution

The fourth proportional to 550,063.31, 759,086.44 and 308,346.04 is: 425,517.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,063.31 : 759,086.44 = 308,346.04 : x
  2. Step 2: Convert to fraction form
    550,063.31/759,086.44 = 308,346.04/x
  3. Step 3: Cross multiply
    550,063.31x = 759,086.44 × 308,346.04
  4. Step 4: Simplify right side
    550,063.31x = 234,061,297,969.69
  5. Step 5: Solve for x
    x = 234,061,297,969.69/550,063.31
  6. Step 6: Final answer
    x = 425,517.02

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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.