Home / 556.31-768.09

Finding the Third Proportional to 556.31 and 768.09

Calculator

Solution

The third proportional to 556.31 and 768.09 is: 1,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.31 : 768.09 = 768.09 : x
  2. Step 2: Convert to fraction form
    556.31/768.09 = 768.09/x
  3. Step 3: Cross multiply
    556.31x = 768.09 × 768.09
  4. Step 4: Simplify right side
    556.31x = 589,968.01
  5. Step 5: Solve for x
    x = 589,968.01/556.31
  6. Step 6: Final answer
    x = 1,060.50

Related Problems

Find third proportional to 278.16 and 384.05
Half scale
Find third proportional to 1,112.63 and 1,536.19
Double scale
Find third proportional to 558 and 771
Similar ratio
Find third proportional to 834.47 and 1,152.14
1.5x scale

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.