Home / 308,888-667,742

Finding the Third Proportional to 308,888 and 667,742

Calculator

Solution

The third proportional to 308,888 and 667,742 is: 1,443,498.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,888 : 667,742 = 667,742 : x
  2. Step 2: Convert to fraction form
    308,888/667,742 = 667,742/x
  3. Step 3: Cross multiply
    308,888x = 667,742 × 667,742
  4. Step 4: Simplify right side
    308,888x = 445,879,378,564
  5. Step 5: Solve for x
    x = 445,879,378,564/308,888
  6. Step 6: Final answer
    x = 1,443,498.54

Related Problems

Find third proportional to 154,444 and 333,871
Half scale
Find third proportional to 617,776 and 1,335,484
Double scale
Find third proportional to 308,890 and 667,746
Similar ratio
Find third proportional to 463,332 and 1,001,613
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.