Home / 639,132-920,682

Finding the Third Proportional to 639,132 and 920,682

Calculator

Solution

The third proportional to 639,132 and 920,682 is: 1,326,260.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,132 : 920,682 = 920,682 : x
  2. Step 2: Convert to fraction form
    639,132/920,682 = 920,682/x
  3. Step 3: Cross multiply
    639,132x = 920,682 × 920,682
  4. Step 4: Simplify right side
    639,132x = 847,655,345,124
  5. Step 5: Solve for x
    x = 847,655,345,124/639,132
  6. Step 6: Final answer
    x = 1,326,260.22

Related Problems

Find third proportional to 319,566 and 460,341
Half scale
Find third proportional to 1,278,264 and 1,841,364
Double scale
Find third proportional to 639,134 and 920,685
Similar ratio
Find third proportional to 958,698 and 1,381,023
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.