Home / 602,804-820,915

Finding the Third Proportional to 602,804 and 820,915

Calculator

Solution

The third proportional to 602,804 and 820,915 is: 1,117,944.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,804 : 820,915 = 820,915 : x
  2. Step 2: Convert to fraction form
    602,804/820,915 = 820,915/x
  3. Step 3: Cross multiply
    602,804x = 820,915 × 820,915
  4. Step 4: Simplify right side
    602,804x = 673,901,437,225
  5. Step 5: Solve for x
    x = 673,901,437,225/602,804
  6. Step 6: Final answer
    x = 1,117,944.53

Related Problems

Find third proportional to 301,402 and 410,457.50
Half scale
Find third proportional to 1,205,608 and 1,641,830
Double scale
Find third proportional to 602,806 and 820,918
Similar ratio
Find third proportional to 904,206 and 1,231,372.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.