Home / 1,313,176.37-1,813,026.78-823,816.80

Finding the Fourth Proportional to 1,313,176.37, 1,813,026.78 and 823,816.80

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Solution

The fourth proportional to 1,313,176.37, 1,813,026.78 and 823,816.80 is: 1,137,396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,176.37 : 1,813,026.78 = 823,816.80 : x
  2. Step 2: Convert to fraction form
    1,313,176.37/1,813,026.78 = 823,816.80/x
  3. Step 3: Cross multiply
    1,313,176.37x = 1,813,026.78 × 823,816.80
  4. Step 4: Simplify right side
    1,313,176.37x = 1,493,601,920,213.90
  5. Step 5: Solve for x
    x = 1,493,601,920,213.90/1,313,176.37
  6. Step 6: Final answer
    x = 1,137,396.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.