Home / 1,384,371.20-2,072,409.60-823,116.80

Finding the Fourth Proportional to 1,384,371.20, 2,072,409.60 and 823,116.80

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Solution

The fourth proportional to 1,384,371.20, 2,072,409.60 and 823,116.80 is: 1,232,209.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,371.20 : 2,072,409.60 = 823,116.80 : x
  2. Step 2: Convert to fraction form
    1,384,371.20/2,072,409.60 = 823,116.80/x
  3. Step 3: Cross multiply
    1,384,371.20x = 2,072,409.60 × 823,116.80
  4. Step 4: Simplify right side
    1,384,371.20x = 1,705,835,158,241.28
  5. Step 5: Solve for x
    x = 1,705,835,158,241.28/1,384,371.20
  6. Step 6: Final answer
    x = 1,232,209.37

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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.