Home / 1,302,114.29-1,796,917.47-721,375.16

Finding the Fourth Proportional to 1,302,114.29, 1,796,917.47 and 721,375.16

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Solution

The fourth proportional to 1,302,114.29, 1,796,917.47 and 721,375.16 is: 995,497.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,114.29 : 1,796,917.47 = 721,375.16 : x
  2. Step 2: Convert to fraction form
    1,302,114.29/1,796,917.47 = 721,375.16/x
  3. Step 3: Cross multiply
    1,302,114.29x = 1,796,917.47 × 721,375.16
  4. Step 4: Simplify right side
    1,302,114.29x = 1,296,251,627,428.05
  5. Step 5: Solve for x
    x = 1,296,251,627,428.05/1,302,114.29
  6. Step 6: Final answer
    x = 995,497.58

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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.