Home / 313,484-440,492

Finding the Third Proportional to 313,484 and 440,492

Calculator

Solution

The third proportional to 313,484 and 440,492 is: 618,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,484 : 440,492 = 440,492 : x
  2. Step 2: Convert to fraction form
    313,484/440,492 = 440,492/x
  3. Step 3: Cross multiply
    313,484x = 440,492 × 440,492
  4. Step 4: Simplify right side
    313,484x = 194,033,202,064
  5. Step 5: Solve for x
    x = 194,033,202,064/313,484
  6. Step 6: Final answer
    x = 618,957.27

Related Problems

Find third proportional to 156,742 and 220,246
Half scale
Find third proportional to 626,968 and 880,984
Double scale
Find third proportional to 313,486 and 440,495
Similar ratio
Find third proportional to 470,226 and 660,738
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.