Home / 728,122.73-1,091,395.16-372,649.37

Finding the Fourth Proportional to 728,122.73, 1,091,395.16 and 372,649.37

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Solution

The fourth proportional to 728,122.73, 1,091,395.16 and 372,649.37 is: 558,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,122.73 : 1,091,395.16 = 372,649.37 : x
  2. Step 2: Convert to fraction form
    728,122.73/1,091,395.16 = 372,649.37/x
  3. Step 3: Cross multiply
    728,122.73x = 1,091,395.16 × 372,649.37
  4. Step 4: Simplify right side
    728,122.73x = 406,707,716,931.80
  5. Step 5: Solve for x
    x = 406,707,716,931.80/728,122.73
  6. Step 6: Final answer
    x = 558,570.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.