Home / 279,358-432,474

Finding the Third Proportional to 279,358 and 432,474

Calculator

Solution

The third proportional to 279,358 and 432,474 is: 669,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,358 : 432,474 = 432,474 : x
  2. Step 2: Convert to fraction form
    279,358/432,474 = 432,474/x
  3. Step 3: Cross multiply
    279,358x = 432,474 × 432,474
  4. Step 4: Simplify right side
    279,358x = 187,033,760,676
  5. Step 5: Solve for x
    x = 187,033,760,676/279,358
  6. Step 6: Final answer
    x = 669,512.81

Related Problems

Find third proportional to 139,679 and 216,237
Half scale
Find third proportional to 558,716 and 864,948
Double scale
Find third proportional to 279,360 and 432,477
Similar ratio
Find third proportional to 419,037 and 648,711
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.