Home / 398,778-860,169

Finding the Third Proportional to 398,778 and 860,169

Calculator

Solution

The third proportional to 398,778 and 860,169 is: 1,855,395.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,778 : 860,169 = 860,169 : x
  2. Step 2: Convert to fraction form
    398,778/860,169 = 860,169/x
  3. Step 3: Cross multiply
    398,778x = 860,169 × 860,169
  4. Step 4: Simplify right side
    398,778x = 739,890,708,561
  5. Step 5: Solve for x
    x = 739,890,708,561/398,778
  6. Step 6: Final answer
    x = 1,855,395.00

Related Problems

Find third proportional to 199,389 and 430,084.50
Half scale
Find third proportional to 797,556 and 1,720,338
Double scale
Find third proportional to 398,780 and 860,173
Similar ratio
Find third proportional to 598,167 and 1,290,253.50
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.