Home / 569.81-878.81

Finding the Third Proportional to 569.81 and 878.81

Calculator

Solution

The third proportional to 569.81 and 878.81 is: 1,355.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.81 : 878.81 = 878.81 : x
  2. Step 2: Convert to fraction form
    569.81/878.81 = 878.81/x
  3. Step 3: Cross multiply
    569.81x = 878.81 × 878.81
  4. Step 4: Simplify right side
    569.81x = 772,311.41
  5. Step 5: Solve for x
    x = 772,311.41/569.81
  6. Step 6: Final answer
    x = 1,355.38

Related Problems

Find third proportional to 284.91 and 439.41
Half scale
Find third proportional to 1,139.63 and 1,757.63
Double scale
Find third proportional to 572 and 882
Similar ratio
Find third proportional to 854.72 and 1,318.22
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.