Home / 606.75-1,290

Finding the Third Proportional to 606.75 and 1,290

Calculator

Solution

The third proportional to 606.75 and 1,290 is: 2,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.75 : 1,290 = 1,290 : x
  2. Step 2: Convert to fraction form
    606.75/1,290 = 1,290/x
  3. Step 3: Cross multiply
    606.75x = 1,290 × 1,290
  4. Step 4: Simplify right side
    606.75x = 1,664,100
  5. Step 5: Solve for x
    x = 1,664,100/606.75
  6. Step 6: Final answer
    x = 2,742.65

Related Problems

Find third proportional to 303.38 and 645
Half scale
Find third proportional to 1,213.50 and 2,580
Double scale
Find third proportional to 609 and 1,294
Similar ratio
Find third proportional to 910.13 and 1,935
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.