Home / 308,620-480,972

Finding the Third Proportional to 308,620 and 480,972

Calculator

Solution

The third proportional to 308,620 and 480,972 is: 749,575.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,620 : 480,972 = 480,972 : x
  2. Step 2: Convert to fraction form
    308,620/480,972 = 480,972/x
  3. Step 3: Cross multiply
    308,620x = 480,972 × 480,972
  4. Step 4: Simplify right side
    308,620x = 231,334,064,784
  5. Step 5: Solve for x
    x = 231,334,064,784/308,620
  6. Step 6: Final answer
    x = 749,575.74

Related Problems

Find third proportional to 154,310 and 240,486
Half scale
Find third proportional to 617,240 and 961,944
Double scale
Find third proportional to 308,622 and 480,975
Similar ratio
Find third proportional to 462,930 and 721,458
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.