Home / 572.48-628.17

Finding the Third Proportional to 572.48 and 628.17

Calculator

Solution

The third proportional to 572.48 and 628.17 is: 689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.48 : 628.17 = 628.17 : x
  2. Step 2: Convert to fraction form
    572.48/628.17 = 628.17/x
  3. Step 3: Cross multiply
    572.48x = 628.17 × 628.17
  4. Step 4: Simplify right side
    572.48x = 394,599.90
  5. Step 5: Solve for x
    x = 394,599.90/572.48
  6. Step 6: Final answer
    x = 689.28

Related Problems

Find third proportional to 286.24 and 314.09
Half scale
Find third proportional to 1,144.97 and 1,256.34
Double scale
Find third proportional to 574 and 630
Similar ratio
Find third proportional to 858.73 and 942.26
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.