Home / 723,629.43-998,669.93-401,443.31

Finding the Fourth Proportional to 723,629.43, 998,669.93 and 401,443.31

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Solution

The fourth proportional to 723,629.43, 998,669.93 and 401,443.31 is: 554,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,629.43 : 998,669.93 = 401,443.31 : x
  2. Step 2: Convert to fraction form
    723,629.43/998,669.93 = 401,443.31/x
  3. Step 3: Cross multiply
    723,629.43x = 998,669.93 × 401,443.31
  4. Step 4: Simplify right side
    723,629.43x = 400,909,362,786.13
  5. Step 5: Solve for x
    x = 400,909,362,786.13/723,629.43
  6. Step 6: Final answer
    x = 554,025.78

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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.