Home / 272,640-413,859

Finding the Third Proportional to 272,640 and 413,859

Calculator

Solution

The third proportional to 272,640 and 413,859 is: 628,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,640 : 413,859 = 413,859 : x
  2. Step 2: Convert to fraction form
    272,640/413,859 = 413,859/x
  3. Step 3: Cross multiply
    272,640x = 413,859 × 413,859
  4. Step 4: Simplify right side
    272,640x = 171,279,271,881
  5. Step 5: Solve for x
    x = 171,279,271,881/272,640
  6. Step 6: Final answer
    x = 628,225.03

Related Problems

Find third proportional to 136,320 and 206,929.50
Half scale
Find third proportional to 545,280 and 827,718
Double scale
Find third proportional to 272,642 and 413,862
Similar ratio
Find third proportional to 408,960 and 620,788.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.