Home / 726,828.25-1,003,012.87-404,538.43

Finding the Fourth Proportional to 726,828.25, 1,003,012.87 and 404,538.43

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Solution

The fourth proportional to 726,828.25, 1,003,012.87 and 404,538.43 is: 558,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,828.25 : 1,003,012.87 = 404,538.43 : x
  2. Step 2: Convert to fraction form
    726,828.25/1,003,012.87 = 404,538.43/x
  3. Step 3: Cross multiply
    726,828.25x = 1,003,012.87 × 404,538.43
  4. Step 4: Simplify right side
    726,828.25x = 405,757,244,661.84
  5. Step 5: Solve for x
    x = 405,757,244,661.84/726,828.25
  6. Step 6: Final answer
    x = 558,257.40

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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.