Home / 642,200-1,411,520

Finding the Third Proportional to 642,200 and 1,411,520

Calculator

Solution

The third proportional to 642,200 and 1,411,520 is: 3,102,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,200 : 1,411,520 = 1,411,520 : x
  2. Step 2: Convert to fraction form
    642,200/1,411,520 = 1,411,520/x
  3. Step 3: Cross multiply
    642,200x = 1,411,520 × 1,411,520
  4. Step 4: Simplify right side
    642,200x = 1,992,388,710,400
  5. Step 5: Solve for x
    x = 1,992,388,710,400/642,200
  6. Step 6: Final answer
    x = 3,102,442.71

Related Problems

Find third proportional to 321,100 and 705,760
Half scale
Find third proportional to 1,284,400 and 2,823,040
Double scale
Find third proportional to 642,202 and 1,411,524
Similar ratio
Find third proportional to 963,300 and 2,117,280
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.