Home / 638,804-988,957

Finding the Third Proportional to 638,804 and 988,957

Calculator

Solution

The third proportional to 638,804 and 988,957 is: 1,531,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,804 : 988,957 = 988,957 : x
  2. Step 2: Convert to fraction form
    638,804/988,957 = 988,957/x
  3. Step 3: Cross multiply
    638,804x = 988,957 × 988,957
  4. Step 4: Simplify right side
    638,804x = 978,035,947,849
  5. Step 5: Solve for x
    x = 978,035,947,849/638,804
  6. Step 6: Final answer
    x = 1,531,042.30

Related Problems

Find third proportional to 319,402 and 494,478.50
Half scale
Find third proportional to 1,277,608 and 1,977,914
Double scale
Find third proportional to 638,806 and 988,960
Similar ratio
Find third proportional to 958,206 and 1,483,435.50
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.