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Finding the Fourth Proportional to 658,086.12, 987,537.42 and 303,150.60

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Solution

The fourth proportional to 658,086.12, 987,537.42 and 303,150.60 is: 454,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,086.12 : 987,537.42 = 303,150.60 : x
  2. Step 2: Convert to fraction form
    658,086.12/987,537.42 = 303,150.60/x
  3. Step 3: Cross multiply
    658,086.12x = 987,537.42 × 303,150.60
  4. Step 4: Simplify right side
    658,086.12x = 299,372,561,395.45
  5. Step 5: Solve for x
    x = 299,372,561,395.45/658,086.12
  6. Step 6: Final answer
    x = 454,913.96

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1.5x scale

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.