Home / 1,302,320.49-1,797,160.31-721,519.77

Finding the Fourth Proportional to 1,302,320.49, 1,797,160.31 and 721,519.77

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Solution

The fourth proportional to 1,302,320.49, 1,797,160.31 and 721,519.77 is: 995,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,320.49 : 1,797,160.31 = 721,519.77 : x
  2. Step 2: Convert to fraction form
    1,302,320.49/1,797,160.31 = 721,519.77/x
  3. Step 3: Cross multiply
    1,302,320.49x = 1,797,160.31 × 721,519.77
  4. Step 4: Simplify right side
    1,302,320.49x = 1,296,686,689,916.73
  5. Step 5: Solve for x
    x = 1,296,686,689,916.73/1,302,320.49
  6. Step 6: Final answer
    x = 995,674.03

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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.