Home / 283,428-434,902

Finding the Third Proportional to 283,428 and 434,902

Calculator

Solution

The third proportional to 283,428 and 434,902 is: 667,329.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,428 : 434,902 = 434,902 : x
  2. Step 2: Convert to fraction form
    283,428/434,902 = 434,902/x
  3. Step 3: Cross multiply
    283,428x = 434,902 × 434,902
  4. Step 4: Simplify right side
    283,428x = 189,139,749,604
  5. Step 5: Solve for x
    x = 189,139,749,604/283,428
  6. Step 6: Final answer
    x = 667,329.09

Related Problems

Find third proportional to 141,714 and 217,451
Half scale
Find third proportional to 566,856 and 869,804
Double scale
Find third proportional to 283,430 and 434,905
Similar ratio
Find third proportional to 425,142 and 652,353
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.