Home / 408,943-620,772

Finding the Third Proportional to 408,943 and 620,772

Calculator

Solution

The third proportional to 408,943 and 620,772 is: 942,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,943 : 620,772 = 620,772 : x
  2. Step 2: Convert to fraction form
    408,943/620,772 = 620,772/x
  3. Step 3: Cross multiply
    408,943x = 620,772 × 620,772
  4. Step 4: Simplify right side
    408,943x = 385,357,875,984
  5. Step 5: Solve for x
    x = 385,357,875,984/408,943
  6. Step 6: Final answer
    x = 942,326.62

Related Problems

Find third proportional to 204,471.50 and 310,386
Half scale
Find third proportional to 817,886 and 1,241,544
Double scale
Find third proportional to 408,945 and 620,775
Similar ratio
Find third proportional to 613,414.50 and 931,158
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.