Home / 317,592-661,320

Finding the Third Proportional to 317,592 and 661,320

Calculator

Solution

The third proportional to 317,592 and 661,320 is: 1,377,062.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,592 : 661,320 = 661,320 : x
  2. Step 2: Convert to fraction form
    317,592/661,320 = 661,320/x
  3. Step 3: Cross multiply
    317,592x = 661,320 × 661,320
  4. Step 4: Simplify right side
    317,592x = 437,344,142,400
  5. Step 5: Solve for x
    x = 437,344,142,400/317,592
  6. Step 6: Final answer
    x = 1,377,062.84

Related Problems

Find third proportional to 158,796 and 330,660
Half scale
Find third proportional to 635,184 and 1,322,640
Double scale
Find third proportional to 317,594 and 661,324
Similar ratio
Find third proportional to 476,388 and 991,980
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.