Home / 405,330-879,888

Finding the Third Proportional to 405,330 and 879,888

Calculator

Solution

The third proportional to 405,330 and 879,888 is: 1,910,055.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,330 : 879,888 = 879,888 : x
  2. Step 2: Convert to fraction form
    405,330/879,888 = 879,888/x
  3. Step 3: Cross multiply
    405,330x = 879,888 × 879,888
  4. Step 4: Simplify right side
    405,330x = 774,202,892,544
  5. Step 5: Solve for x
    x = 774,202,892,544/405,330
  6. Step 6: Final answer
    x = 1,910,055.74

Related Problems

Find third proportional to 202,665 and 439,944
Half scale
Find third proportional to 810,660 and 1,759,776
Double scale
Find third proportional to 405,332 and 879,892
Similar ratio
Find third proportional to 607,995 and 1,319,832
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.