Home / 317,118-491,123

Finding the Third Proportional to 317,118 and 491,123

Calculator

Solution

The third proportional to 317,118 and 491,123 is: 760,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,118 : 491,123 = 491,123 : x
  2. Step 2: Convert to fraction form
    317,118/491,123 = 491,123/x
  3. Step 3: Cross multiply
    317,118x = 491,123 × 491,123
  4. Step 4: Simplify right side
    317,118x = 241,201,801,129
  5. Step 5: Solve for x
    x = 241,201,801,129/317,118
  6. Step 6: Final answer
    x = 760,605.83

Related Problems

Find third proportional to 158,559 and 245,561.50
Half scale
Find third proportional to 634,236 and 982,246
Double scale
Find third proportional to 317,120 and 491,126
Similar ratio
Find third proportional to 475,677 and 736,684.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.