Home / 396,617-604,220

Finding the Third Proportional to 396,617 and 604,220

Calculator

Solution

The third proportional to 396,617 and 604,220 is: 920,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,617 : 604,220 = 604,220 : x
  2. Step 2: Convert to fraction form
    396,617/604,220 = 604,220/x
  3. Step 3: Cross multiply
    396,617x = 604,220 × 604,220
  4. Step 4: Simplify right side
    396,617x = 365,081,808,400
  5. Step 5: Solve for x
    x = 365,081,808,400/396,617
  6. Step 6: Final answer
    x = 920,489.56

Related Problems

Find third proportional to 198,308.50 and 302,110
Half scale
Find third proportional to 793,234 and 1,208,440
Double scale
Find third proportional to 396,619 and 604,223
Similar ratio
Find third proportional to 594,925.50 and 906,330
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.