Home / 1,302,619.79-1,797,672.60-721,841.28

Finding the Fourth Proportional to 1,302,619.79, 1,797,672.60 and 721,841.28

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Solution

The fourth proportional to 1,302,619.79, 1,797,672.60 and 721,841.28 is: 996,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,619.79 : 1,797,672.60 = 721,841.28 : x
  2. Step 2: Convert to fraction form
    1,302,619.79/1,797,672.60 = 721,841.28/x
  3. Step 3: Cross multiply
    1,302,619.79x = 1,797,672.60 × 721,841.28
  4. Step 4: Simplify right side
    1,302,619.79x = 1,297,634,290,604.93
  5. Step 5: Solve for x
    x = 1,297,634,290,604.93/1,302,619.79
  6. Step 6: Final answer
    x = 996,172.71

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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.