Home / 978,471-2,149,881.75

Finding the Third Proportional to 978,471 and 2,149,881.75

Calculator

Solution

The third proportional to 978,471 and 2,149,881.75 is: 4,723,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,471 : 2,149,881.75 = 2,149,881.75 : x
  2. Step 2: Convert to fraction form
    978,471/2,149,881.75 = 2,149,881.75/x
  3. Step 3: Cross multiply
    978,471x = 2,149,881.75 × 2,149,881.75
  4. Step 4: Simplify right side
    978,471x = 4,621,991,538,983.06
  5. Step 5: Solve for x
    x = 4,621,991,538,983.06/978,471
  6. Step 6: Final answer
    x = 4,723,687.81

Related Problems

Find third proportional to 489,235.50 and 1,074,940.88
Half scale
Find third proportional to 1,956,942 and 4,299,763.50
Double scale
Find third proportional to 978,473 and 2,149,886
Similar ratio
Find third proportional to 1,467,706.50 and 3,224,822.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.