Home / 741,139.80-1,022,772.06-401,607.96

Finding the Fourth Proportional to 741,139.80, 1,022,772.06 and 401,607.96

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Solution

The fourth proportional to 741,139.80, 1,022,772.06 and 401,607.96 is: 554,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,139.80 : 1,022,772.06 = 401,607.96 : x
  2. Step 2: Convert to fraction form
    741,139.80/1,022,772.06 = 401,607.96/x
  3. Step 3: Cross multiply
    741,139.80x = 1,022,772.06 × 401,607.96
  4. Step 4: Simplify right side
    741,139.80x = 410,753,400,561.60
  5. Step 5: Solve for x
    x = 410,753,400,561.60/741,139.80
  6. Step 6: Final answer
    x = 554,218.52

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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.