Home / 422,306-619,611

Finding the Third Proportional to 422,306 and 619,611

Calculator

Solution

The third proportional to 422,306 and 619,611 is: 909,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,306 : 619,611 = 619,611 : x
  2. Step 2: Convert to fraction form
    422,306/619,611 = 619,611/x
  3. Step 3: Cross multiply
    422,306x = 619,611 × 619,611
  4. Step 4: Simplify right side
    422,306x = 383,917,791,321
  5. Step 5: Solve for x
    x = 383,917,791,321/422,306
  6. Step 6: Final answer
    x = 909,098.60

Related Problems

Find third proportional to 211,153 and 309,805.50
Half scale
Find third proportional to 844,612 and 1,239,222
Double scale
Find third proportional to 422,308 and 619,614
Similar ratio
Find third proportional to 633,459 and 929,416.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.