Home / 476.75-688.75

Finding the Third Proportional to 476.75 and 688.75

Calculator

Solution

The third proportional to 476.75 and 688.75 is: 995.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.75 : 688.75 = 688.75 : x
  2. Step 2: Convert to fraction form
    476.75/688.75 = 688.75/x
  3. Step 3: Cross multiply
    476.75x = 688.75 × 688.75
  4. Step 4: Simplify right side
    476.75x = 474,376.56
  5. Step 5: Solve for x
    x = 474,376.56/476.75
  6. Step 6: Final answer
    x = 995.02

Related Problems

Find third proportional to 238.38 and 344.38
Half scale
Find third proportional to 953.50 and 1,377.50
Double scale
Find third proportional to 479 and 692
Similar ratio
Find third proportional to 715.13 and 1,033.13
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.