Home / 401,240-874,408

Finding the Third Proportional to 401,240 and 874,408

Calculator

Solution

The third proportional to 401,240 and 874,408 is: 1,905,566.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,240 : 874,408 = 874,408 : x
  2. Step 2: Convert to fraction form
    401,240/874,408 = 874,408/x
  3. Step 3: Cross multiply
    401,240x = 874,408 × 874,408
  4. Step 4: Simplify right side
    401,240x = 764,589,350,464
  5. Step 5: Solve for x
    x = 764,589,350,464/401,240
  6. Step 6: Final answer
    x = 1,905,566.12

Related Problems

Find third proportional to 200,620 and 437,204
Half scale
Find third proportional to 802,480 and 1,748,816
Double scale
Find third proportional to 401,242 and 874,412
Similar ratio
Find third proportional to 601,860 and 1,311,612
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.