Home / 399,178-860,564

Finding the Third Proportional to 399,178 and 860,564

Calculator

Solution

The third proportional to 399,178 and 860,564 is: 1,855,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178 : 860,564 = 860,564 : x
  2. Step 2: Convert to fraction form
    399,178/860,564 = 860,564/x
  3. Step 3: Cross multiply
    399,178x = 860,564 × 860,564
  4. Step 4: Simplify right side
    399,178x = 740,570,398,096
  5. Step 5: Solve for x
    x = 740,570,398,096/399,178
  6. Step 6: Final answer
    x = 1,855,238.51

Related Problems

Find third proportional to 199,589 and 430,282
Half scale
Find third proportional to 798,356 and 1,721,128
Double scale
Find third proportional to 399,180 and 860,568
Similar ratio
Find third proportional to 598,767 and 1,290,846
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.