Home / 743.38-878.38

Finding the Third Proportional to 743.38 and 878.38

Calculator

Solution

The third proportional to 743.38 and 878.38 is: 1,037.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    743.38 : 878.38 = 878.38 : x
  2. Step 2: Convert to fraction form
    743.38/878.38 = 878.38/x
  3. Step 3: Cross multiply
    743.38x = 878.38 × 878.38
  4. Step 4: Simplify right side
    743.38x = 771,542.64
  5. Step 5: Solve for x
    x = 771,542.64/743.38
  6. Step 6: Final answer
    x = 1,037.89

Related Problems

Find third proportional to 371.69 and 439.19
Half scale
Find third proportional to 1,486.75 and 1,756.75
Double scale
Find third proportional to 745 and 881
Similar ratio
Find third proportional to 1,115.06 and 1,317.56
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.