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Finding the Fourth Proportional to 831,625.92, 1,247,361.12 and 232,640.64

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Solution

The fourth proportional to 831,625.92, 1,247,361.12 and 232,640.64 is: 348,939.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,625.92 : 1,247,361.12 = 232,640.64 : x
  2. Step 2: Convert to fraction form
    831,625.92/1,247,361.12 = 232,640.64/x
  3. Step 3: Cross multiply
    831,625.92x = 1,247,361.12 × 232,640.64
  4. Step 4: Simplify right side
    831,625.92x = 290,186,889,267.92
  5. Step 5: Solve for x
    x = 290,186,889,267.92/831,625.92
  6. Step 6: Final answer
    x = 348,939.21

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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.