Home / 405,240-938,058

Finding the Third Proportional to 405,240 and 938,058

Calculator

Solution

The third proportional to 405,240 and 938,058 is: 2,171,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,240 : 938,058 = 938,058 : x
  2. Step 2: Convert to fraction form
    405,240/938,058 = 938,058/x
  3. Step 3: Cross multiply
    405,240x = 938,058 × 938,058
  4. Step 4: Simplify right side
    405,240x = 879,952,811,364
  5. Step 5: Solve for x
    x = 879,952,811,364/405,240
  6. Step 6: Final answer
    x = 2,171,436.21

Related Problems

Find third proportional to 202,620 and 469,029
Half scale
Find third proportional to 810,480 and 1,876,116
Double scale
Find third proportional to 405,242 and 938,063
Similar ratio
Find third proportional to 607,860 and 1,407,087
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.