Home / 408,040-612,060

Finding the Third Proportional to 408,040 and 612,060

Calculator

Solution

The third proportional to 408,040 and 612,060 is: 918,090

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,040 : 612,060 = 612,060 : x
  2. Step 2: Convert to fraction form
    408,040/612,060 = 612,060/x
  3. Step 3: Cross multiply
    408,040x = 612,060 × 612,060
  4. Step 4: Simplify right side
    408,040x = 374,617,443,600
  5. Step 5: Solve for x
    x = 374,617,443,600/408,040
  6. Step 6: Final answer
    x = 918,090

Related Problems

Find third proportional to 204,020 and 306,030
Half scale
Find third proportional to 816,080 and 1,224,120
Double scale
Find third proportional to 408,042 and 612,063
Similar ratio
Find third proportional to 612,060 and 918,090
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.