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Finding the Fourth Proportional to 658,912.60, 988,077.30 and 303,743.80

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Solution

The fourth proportional to 658,912.60, 988,077.30 and 303,743.80 is: 455,481.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,912.60 : 988,077.30 = 303,743.80 : x
  2. Step 2: Convert to fraction form
    658,912.60/988,077.30 = 303,743.80/x
  3. Step 3: Cross multiply
    658,912.60x = 988,077.30 × 303,743.80
  4. Step 4: Simplify right side
    658,912.60x = 300,122,353,795.74
  5. Step 5: Solve for x
    x = 300,122,353,795.74/658,912.60
  6. Step 6: Final answer
    x = 455,481.28

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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.