Home / 313,508-448,140

Finding the Third Proportional to 313,508 and 448,140

Calculator

Solution

The third proportional to 313,508 and 448,140 is: 640,587.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,508 : 448,140 = 448,140 : x
  2. Step 2: Convert to fraction form
    313,508/448,140 = 448,140/x
  3. Step 3: Cross multiply
    313,508x = 448,140 × 448,140
  4. Step 4: Simplify right side
    313,508x = 200,829,459,600
  5. Step 5: Solve for x
    x = 200,829,459,600/313,508
  6. Step 6: Final answer
    x = 640,587.99

Related Problems

Find third proportional to 156,754 and 224,070
Half scale
Find third proportional to 627,016 and 896,280
Double scale
Find third proportional to 313,510 and 448,143
Similar ratio
Find third proportional to 470,262 and 672,210
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.