Home / 286,008-428,460

Finding the Third Proportional to 286,008 and 428,460

Calculator

Solution

The third proportional to 286,008 and 428,460 is: 641,863.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,008 : 428,460 = 428,460 : x
  2. Step 2: Convert to fraction form
    286,008/428,460 = 428,460/x
  3. Step 3: Cross multiply
    286,008x = 428,460 × 428,460
  4. Step 4: Simplify right side
    286,008x = 183,577,971,600
  5. Step 5: Solve for x
    x = 183,577,971,600/286,008
  6. Step 6: Final answer
    x = 641,863.07

Related Problems

Find third proportional to 143,004 and 214,230
Half scale
Find third proportional to 572,016 and 856,920
Double scale
Find third proportional to 286,010 and 428,463
Similar ratio
Find third proportional to 429,012 and 642,690
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.