Home / 1,333,258.29-1,839,891.35-721,412.23

Finding the Fourth Proportional to 1,333,258.29, 1,839,891.35 and 721,412.23

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Solution

The fourth proportional to 1,333,258.29, 1,839,891.35 and 721,412.23 is: 995,546.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,258.29 : 1,839,891.35 = 721,412.23 : x
  2. Step 2: Convert to fraction form
    1,333,258.29/1,839,891.35 = 721,412.23/x
  3. Step 3: Cross multiply
    1,333,258.29x = 1,839,891.35 × 721,412.23
  4. Step 4: Simplify right side
    1,333,258.29x = 1,327,320,121,761.21
  5. Step 5: Solve for x
    x = 1,327,320,121,761.21/1,333,258.29
  6. Step 6: Final answer
    x = 995,546.12

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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.