Home / 312,206-671,742

Finding the Third Proportional to 312,206 and 671,742

Calculator

Solution

The third proportional to 312,206 and 671,742 is: 1,445,319.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,206 : 671,742 = 671,742 : x
  2. Step 2: Convert to fraction form
    312,206/671,742 = 671,742/x
  3. Step 3: Cross multiply
    312,206x = 671,742 × 671,742
  4. Step 4: Simplify right side
    312,206x = 451,237,314,564
  5. Step 5: Solve for x
    x = 451,237,314,564/312,206
  6. Step 6: Final answer
    x = 1,445,319.16

Related Problems

Find third proportional to 156,103 and 335,871
Half scale
Find third proportional to 624,412 and 1,343,484
Double scale
Find third proportional to 312,208 and 671,746
Similar ratio
Find third proportional to 468,309 and 1,007,613
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.