Home / 728,163.26-1,004,899.33-405,875.70

Finding the Fourth Proportional to 728,163.26, 1,004,899.33 and 405,875.70

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Solution

The fourth proportional to 728,163.26, 1,004,899.33 and 405,875.70 is: 560,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,163.26 : 1,004,899.33 = 405,875.70 : x
  2. Step 2: Convert to fraction form
    728,163.26/1,004,899.33 = 405,875.70/x
  3. Step 3: Cross multiply
    728,163.26x = 1,004,899.33 × 405,875.70
  4. Step 4: Simplify right side
    728,163.26x = 407,864,218,993.28
  5. Step 5: Solve for x
    x = 407,864,218,993.28/728,163.26
  6. Step 6: Final answer
    x = 560,127.43

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Double scale
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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.