Home / 453,540-989,970

Finding the Third Proportional to 453,540 and 989,970

Calculator

Solution

The third proportional to 453,540 and 989,970 is: 2,160,869.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,540 : 989,970 = 989,970 : x
  2. Step 2: Convert to fraction form
    453,540/989,970 = 989,970/x
  3. Step 3: Cross multiply
    453,540x = 989,970 × 989,970
  4. Step 4: Simplify right side
    453,540x = 980,040,600,900
  5. Step 5: Solve for x
    x = 980,040,600,900/453,540
  6. Step 6: Final answer
    x = 2,160,869.16

Related Problems

Find third proportional to 226,770 and 494,985
Half scale
Find third proportional to 907,080 and 1,979,940
Double scale
Find third proportional to 453,542 and 989,974
Similar ratio
Find third proportional to 680,310 and 1,484,955
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.