Home / 572.91-666.56

Finding the Third Proportional to 572.91 and 666.56

Calculator

Solution

The third proportional to 572.91 and 666.56 is: 775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.91 : 666.56 = 666.56 : x
  2. Step 2: Convert to fraction form
    572.91/666.56 = 666.56/x
  3. Step 3: Cross multiply
    572.91x = 666.56 × 666.56
  4. Step 4: Simplify right side
    572.91x = 444,305.57
  5. Step 5: Solve for x
    x = 444,305.57/572.91
  6. Step 6: Final answer
    x = 775.53

Related Problems

Find third proportional to 286.45 and 333.28
Half scale
Find third proportional to 1,145.81 and 1,333.13
Double scale
Find third proportional to 575 and 669
Similar ratio
Find third proportional to 859.36 and 999.84
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.