Home / 1,293,975.54-1,785,662.13-721,003.38

Finding the Fourth Proportional to 1,293,975.54, 1,785,662.13 and 721,003.38

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Solution

The fourth proportional to 1,293,975.54, 1,785,662.13 and 721,003.38 is: 994,971.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,975.54 : 1,785,662.13 = 721,003.38 : x
  2. Step 2: Convert to fraction form
    1,293,975.54/1,785,662.13 = 721,003.38/x
  3. Step 3: Cross multiply
    1,293,975.54x = 1,785,662.13 × 721,003.38
  4. Step 4: Simplify right side
    1,293,975.54x = 1,287,468,431,268.00
  5. Step 5: Solve for x
    x = 1,287,468,431,268.00/1,293,975.54
  6. Step 6: Final answer
    x = 994,971.23

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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.