Home / 313,566-689,562

Finding the Third Proportional to 313,566 and 689,562

Calculator

Solution

The third proportional to 313,566 and 689,562 is: 1,516,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,566 : 689,562 = 689,562 : x
  2. Step 2: Convert to fraction form
    313,566/689,562 = 689,562/x
  3. Step 3: Cross multiply
    313,566x = 689,562 × 689,562
  4. Step 4: Simplify right side
    313,566x = 475,495,751,844
  5. Step 5: Solve for x
    x = 475,495,751,844/313,566
  6. Step 6: Final answer
    x = 1,516,413.62

Related Problems

Find third proportional to 156,783 and 344,781
Half scale
Find third proportional to 627,132 and 1,379,124
Double scale
Find third proportional to 313,568 and 689,566
Similar ratio
Find third proportional to 470,349 and 1,034,343
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.