Home / 287,102-440,697

Finding the Third Proportional to 287,102 and 440,697

Calculator

Solution

The third proportional to 287,102 and 440,697 is: 676,462.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,102 : 440,697 = 440,697 : x
  2. Step 2: Convert to fraction form
    287,102/440,697 = 440,697/x
  3. Step 3: Cross multiply
    287,102x = 440,697 × 440,697
  4. Step 4: Simplify right side
    287,102x = 194,213,845,809
  5. Step 5: Solve for x
    x = 194,213,845,809/287,102
  6. Step 6: Final answer
    x = 676,462.88

Related Problems

Find third proportional to 143,551 and 220,348.50
Half scale
Find third proportional to 574,204 and 881,394
Double scale
Find third proportional to 287,104 and 440,700
Similar ratio
Find third proportional to 430,653 and 661,045.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.