Home / 726,939.80-1,003,206.48-404,629.40

Finding the Fourth Proportional to 726,939.80, 1,003,206.48 and 404,629.40

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Solution

The fourth proportional to 726,939.80, 1,003,206.48 and 404,629.40 is: 558,405.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,939.80 : 1,003,206.48 = 404,629.40 : x
  2. Step 2: Convert to fraction form
    726,939.80/1,003,206.48 = 404,629.40/x
  3. Step 3: Cross multiply
    726,939.80x = 1,003,206.48 × 404,629.40
  4. Step 4: Simplify right side
    726,939.80x = 405,926,836,078.51
  5. Step 5: Solve for x
    x = 405,926,836,078.51/726,939.80
  6. Step 6: Final answer
    x = 558,405.02

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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.