Home / 281,619-435,798

Finding the Third Proportional to 281,619 and 435,798

Calculator

Solution

The third proportional to 281,619 and 435,798 is: 674,385.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,619 : 435,798 = 435,798 : x
  2. Step 2: Convert to fraction form
    281,619/435,798 = 435,798/x
  3. Step 3: Cross multiply
    281,619x = 435,798 × 435,798
  4. Step 4: Simplify right side
    281,619x = 189,919,896,804
  5. Step 5: Solve for x
    x = 189,919,896,804/281,619
  6. Step 6: Final answer
    x = 674,385.95

Related Problems

Find third proportional to 140,809.50 and 217,899
Half scale
Find third proportional to 563,238 and 871,596
Double scale
Find third proportional to 281,621 and 435,801
Similar ratio
Find third proportional to 422,428.50 and 653,697
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.