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Finding the Fourth Proportional to 658,003.43, 987,121.75 and 298,159.75

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Solution

The fourth proportional to 658,003.43, 987,121.75 and 298,159.75 is: 447,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,003.43 : 987,121.75 = 298,159.75 : x
  2. Step 2: Convert to fraction form
    658,003.43/987,121.75 = 298,159.75/x
  3. Step 3: Cross multiply
    658,003.43x = 987,121.75 × 298,159.75
  4. Step 4: Simplify right side
    658,003.43x = 294,319,970,009.35
  5. Step 5: Solve for x
    x = 294,319,970,009.35/658,003.43
  6. Step 6: Final answer
    x = 447,292.46

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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.