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Finding the Fourth Proportional to 658,759.22, 987,376.26 and 303,026.66

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Solution

The fourth proportional to 658,759.22, 987,376.26 and 303,026.66 is: 454,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,759.22 : 987,376.26 = 303,026.66 : x
  2. Step 2: Convert to fraction form
    658,759.22/987,376.26 = 303,026.66/x
  3. Step 3: Cross multiply
    658,759.22x = 987,376.26 × 303,026.66
  4. Step 4: Simplify right side
    658,759.22x = 299,201,330,231.09
  5. Step 5: Solve for x
    x = 299,201,330,231.09/658,759.22
  6. Step 6: Final answer
    x = 454,189.21

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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.