Home / 831,859.20-1,247,608.62-263,286.51

Finding the Fourth Proportional to 831,859.20, 1,247,608.62 and 263,286.51

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Solution

The fourth proportional to 831,859.20, 1,247,608.62 and 263,286.51 is: 394,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,859.20 : 1,247,608.62 = 263,286.51 : x
  2. Step 2: Convert to fraction form
    831,859.20/1,247,608.62 = 263,286.51/x
  3. Step 3: Cross multiply
    831,859.20x = 1,247,608.62 × 263,286.51
  4. Step 4: Simplify right side
    831,859.20x = 328,478,518,089.28
  5. Step 5: Solve for x
    x = 328,478,518,089.28/831,859.20
  6. Step 6: Final answer
    x = 394,872.74

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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.