Home / 860,399.82-1,291,168.26-405,121.27

Finding the Fourth Proportional to 860,399.82, 1,291,168.26 and 405,121.27

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Solution

The fourth proportional to 860,399.82, 1,291,168.26 and 405,121.27 is: 607,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,399.82 : 1,291,168.26 = 405,121.27 : x
  2. Step 2: Convert to fraction form
    860,399.82/1,291,168.26 = 405,121.27/x
  3. Step 3: Cross multiply
    860,399.82x = 1,291,168.26 × 405,121.27
  4. Step 4: Simplify right side
    860,399.82x = 523,079,725,274.89
  5. Step 5: Solve for x
    x = 523,079,725,274.89/860,399.82
  6. Step 6: Final answer
    x = 607,949.60

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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.