Home / 330,617-491,065

Finding the Third Proportional to 330,617 and 491,065

Calculator

Solution

The third proportional to 330,617 and 491,065 is: 729,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,617 : 491,065 = 491,065 : x
  2. Step 2: Convert to fraction form
    330,617/491,065 = 491,065/x
  3. Step 3: Cross multiply
    330,617x = 491,065 × 491,065
  4. Step 4: Simplify right side
    330,617x = 241,144,834,225
  5. Step 5: Solve for x
    x = 241,144,834,225/330,617
  6. Step 6: Final answer
    x = 729,378.21

Related Problems

Find third proportional to 165,308.50 and 245,532.50
Half scale
Find third proportional to 661,234 and 982,130
Double scale
Find third proportional to 330,619 and 491,068
Similar ratio
Find third proportional to 495,925.50 and 736,597.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.