Home / 453,420-989,931

Finding the Third Proportional to 453,420 and 989,931

Calculator

Solution

The third proportional to 453,420 and 989,931 is: 2,161,270.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,420 : 989,931 = 989,931 : x
  2. Step 2: Convert to fraction form
    453,420/989,931 = 989,931/x
  3. Step 3: Cross multiply
    453,420x = 989,931 × 989,931
  4. Step 4: Simplify right side
    453,420x = 979,963,384,761
  5. Step 5: Solve for x
    x = 979,963,384,761/453,420
  6. Step 6: Final answer
    x = 2,161,270.75

Related Problems

Find third proportional to 226,710 and 494,965.50
Half scale
Find third proportional to 906,840 and 1,979,862
Double scale
Find third proportional to 453,422 and 989,935
Similar ratio
Find third proportional to 680,130 and 1,484,896.50
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.