Home / 812,991.90-1,218,995.37-363,629.01

Finding the Fourth Proportional to 812,991.90, 1,218,995.37 and 363,629.01

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Solution

The fourth proportional to 812,991.90, 1,218,995.37 and 363,629.01 is: 545,223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,991.90 : 1,218,995.37 = 363,629.01 : x
  2. Step 2: Convert to fraction form
    812,991.90/1,218,995.37 = 363,629.01/x
  3. Step 3: Cross multiply
    812,991.90x = 1,218,995.37 × 363,629.01
  4. Step 4: Simplify right side
    812,991.90x = 443,262,079,587.68
  5. Step 5: Solve for x
    x = 443,262,079,587.68/812,991.90
  6. Step 6: Final answer
    x = 545,223.24

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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.