Home / 302,599-439,710

Finding the Third Proportional to 302,599 and 439,710

Calculator

Solution

The third proportional to 302,599 and 439,710 is: 638,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,599 : 439,710 = 439,710 : x
  2. Step 2: Convert to fraction form
    302,599/439,710 = 439,710/x
  3. Step 3: Cross multiply
    302,599x = 439,710 × 439,710
  4. Step 4: Simplify right side
    302,599x = 193,344,884,100
  5. Step 5: Solve for x
    x = 193,344,884,100/302,599
  6. Step 6: Final answer
    x = 638,947.53

Related Problems

Find third proportional to 151,299.50 and 219,855
Half scale
Find third proportional to 605,198 and 879,420
Double scale
Find third proportional to 302,601 and 439,713
Similar ratio
Find third proportional to 453,898.50 and 659,565
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.