Home / 726,840.47-1,003,021.99-400,150.77

Finding the Fourth Proportional to 726,840.47, 1,003,021.99 and 400,150.77

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Solution

The fourth proportional to 726,840.47, 1,003,021.99 and 400,150.77 is: 552,198.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,840.47 : 1,003,021.99 = 400,150.77 : x
  2. Step 2: Convert to fraction form
    726,840.47/1,003,021.99 = 400,150.77/x
  3. Step 3: Cross multiply
    726,840.47x = 1,003,021.99 × 400,150.77
  4. Step 4: Simplify right side
    726,840.47x = 401,360,016,863.72
  5. Step 5: Solve for x
    x = 401,360,016,863.72/726,840.47
  6. Step 6: Final answer
    x = 552,198.22

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1.5x scale

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.