Home / 320,778-448,470

Finding the Third Proportional to 320,778 and 448,470

Calculator

Solution

The third proportional to 320,778 and 448,470 is: 626,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,778 : 448,470 = 448,470 : x
  2. Step 2: Convert to fraction form
    320,778/448,470 = 448,470/x
  3. Step 3: Cross multiply
    320,778x = 448,470 × 448,470
  4. Step 4: Simplify right side
    320,778x = 201,125,340,900
  5. Step 5: Solve for x
    x = 201,125,340,900/320,778
  6. Step 6: Final answer
    x = 626,992.32

Related Problems

Find third proportional to 160,389 and 224,235
Half scale
Find third proportional to 641,556 and 896,940
Double scale
Find third proportional to 320,780 and 448,473
Similar ratio
Find third proportional to 481,167 and 672,705
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.