Home / 279,983-432,354

Finding the Third Proportional to 279,983 and 432,354

Calculator

Solution

The third proportional to 279,983 and 432,354 is: 667,647.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,983 : 432,354 = 432,354 : x
  2. Step 2: Convert to fraction form
    279,983/432,354 = 432,354/x
  3. Step 3: Cross multiply
    279,983x = 432,354 × 432,354
  4. Step 4: Simplify right side
    279,983x = 186,929,981,316
  5. Step 5: Solve for x
    x = 186,929,981,316/279,983
  6. Step 6: Final answer
    x = 667,647.61

Related Problems

Find third proportional to 139,991.50 and 216,177
Half scale
Find third proportional to 559,966 and 864,708
Double scale
Find third proportional to 279,985 and 432,357
Similar ratio
Find third proportional to 419,974.50 and 648,531
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.