Home / 1,265,205.35-1,745,939.96-721,516.13

Finding the Fourth Proportional to 1,265,205.35, 1,745,939.96 and 721,516.13

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Solution

The fourth proportional to 1,265,205.35, 1,745,939.96 and 721,516.13 is: 995,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,205.35 : 1,745,939.96 = 721,516.13 : x
  2. Step 2: Convert to fraction form
    1,265,205.35/1,745,939.96 = 721,516.13/x
  3. Step 3: Cross multiply
    1,265,205.35x = 1,745,939.96 × 721,516.13
  4. Step 4: Simplify right side
    1,265,205.35x = 1,259,723,836,225.65
  5. Step 5: Solve for x
    x = 1,259,723,836,225.65/1,265,205.35
  6. Step 6: Final answer
    x = 995,667.49

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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.