Home / 315,712-660,608

Finding the Third Proportional to 315,712 and 660,608

Calculator

Solution

The third proportional to 315,712 and 660,608 is: 1,382,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,712 : 660,608 = 660,608 : x
  2. Step 2: Convert to fraction form
    315,712/660,608 = 660,608/x
  3. Step 3: Cross multiply
    315,712x = 660,608 × 660,608
  4. Step 4: Simplify right side
    315,712x = 436,402,929,664
  5. Step 5: Solve for x
    x = 436,402,929,664/315,712
  6. Step 6: Final answer
    x = 1,382,281.73

Related Problems

Find third proportional to 157,856 and 330,304
Half scale
Find third proportional to 631,424 and 1,321,216
Double scale
Find third proportional to 315,714 and 660,612
Similar ratio
Find third proportional to 473,568 and 990,912
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.