Home / 607-980

Finding the Third Proportional to 607 and 980

Calculator

Solution

The third proportional to 607 and 980 is: 1,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    607 : 980 = 980 : x
  2. Step 2: Convert to fraction form
    607/980 = 980/x
  3. Step 3: Cross multiply
    607x = 980 × 980
  4. Step 4: Simplify right side
    607x = 960,400
  5. Step 5: Solve for x
    x = 960,400/607
  6. Step 6: Final answer
    x = 1,582.21

Related Problems

Find third proportional to 303.50 and 490
Half scale
Find third proportional to 1,214 and 1,960
Double scale
Find third proportional to 609 and 983
Similar ratio
Find third proportional to 910.50 and 1,470
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.