Home / 401,074-872,707

Finding the Third Proportional to 401,074 and 872,707

Calculator

Solution

The third proportional to 401,074 and 872,707 is: 1,898,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,074 : 872,707 = 872,707 : x
  2. Step 2: Convert to fraction form
    401,074/872,707 = 872,707/x
  3. Step 3: Cross multiply
    401,074x = 872,707 × 872,707
  4. Step 4: Simplify right side
    401,074x = 761,617,507,849
  5. Step 5: Solve for x
    x = 761,617,507,849/401,074
  6. Step 6: Final answer
    x = 1,898,945.10

Related Problems

Find third proportional to 200,537 and 436,353.50
Half scale
Find third proportional to 802,148 and 1,745,414
Double scale
Find third proportional to 401,076 and 872,711
Similar ratio
Find third proportional to 601,611 and 1,309,060.50
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.