Home / 290,778-616,770

Finding the Third Proportional to 290,778 and 616,770

Calculator

Solution

The third proportional to 290,778 and 616,770 is: 1,308,232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,778 : 616,770 = 616,770 : x
  2. Step 2: Convert to fraction form
    290,778/616,770 = 616,770/x
  3. Step 3: Cross multiply
    290,778x = 616,770 × 616,770
  4. Step 4: Simplify right side
    290,778x = 380,405,232,900
  5. Step 5: Solve for x
    x = 380,405,232,900/290,778
  6. Step 6: Final answer
    x = 1,308,232.51

Related Problems

Find third proportional to 145,389 and 308,385
Half scale
Find third proportional to 581,556 and 1,233,540
Double scale
Find third proportional to 290,780 and 616,774
Similar ratio
Find third proportional to 436,167 and 925,155
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.