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Finding the Fourth Proportional to 603,726.82, 905,621.23 and 154,451.56

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Solution

The fourth proportional to 603,726.82, 905,621.23 and 154,451.56 is: 231,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,726.82 : 905,621.23 = 154,451.56 : x
  2. Step 2: Convert to fraction form
    603,726.82/905,621.23 = 154,451.56/x
  3. Step 3: Cross multiply
    603,726.82x = 905,621.23 × 154,451.56
  4. Step 4: Simplify right side
    603,726.82x = 139,874,611,742.62
  5. Step 5: Solve for x
    x = 139,874,611,742.62/603,726.82
  6. Step 6: Final answer
    x = 231,685.27

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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.