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Finding the Fourth Proportional to 603,850.47, 905,754.90 and 154,575.21

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Solution

The fourth proportional to 603,850.47, 905,754.90 and 154,575.21 is: 231,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,850.47 : 905,754.90 = 154,575.21 : x
  2. Step 2: Convert to fraction form
    603,850.47/905,754.90 = 154,575.21/x
  3. Step 3: Cross multiply
    603,850.47x = 905,754.90 × 154,575.21
  4. Step 4: Simplify right side
    603,850.47x = 140,007,253,876.03
  5. Step 5: Solve for x
    x = 140,007,253,876.03/603,850.47
  6. Step 6: Final answer
    x = 231,857.49

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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.