Home / 289,354-634,736

Finding the Third Proportional to 289,354 and 634,736

Calculator

Solution

The third proportional to 289,354 and 634,736 is: 1,392,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,354 : 634,736 = 634,736 : x
  2. Step 2: Convert to fraction form
    289,354/634,736 = 634,736/x
  3. Step 3: Cross multiply
    289,354x = 634,736 × 634,736
  4. Step 4: Simplify right side
    289,354x = 402,889,789,696
  5. Step 5: Solve for x
    x = 402,889,789,696/289,354
  6. Step 6: Final answer
    x = 1,392,376.78

Related Problems

Find third proportional to 144,677 and 317,368
Half scale
Find third proportional to 578,708 and 1,269,472
Double scale
Find third proportional to 289,356 and 634,740
Similar ratio
Find third proportional to 434,031 and 952,104
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.