Home / 321,711-423,048

Finding the Third Proportional to 321,711 and 423,048

Calculator

Solution

The third proportional to 321,711 and 423,048 is: 556,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,711 : 423,048 = 423,048 : x
  2. Step 2: Convert to fraction form
    321,711/423,048 = 423,048/x
  3. Step 3: Cross multiply
    321,711x = 423,048 × 423,048
  4. Step 4: Simplify right side
    321,711x = 178,969,610,304
  5. Step 5: Solve for x
    x = 178,969,610,304/321,711
  6. Step 6: Final answer
    x = 556,305.54

Related Problems

Find third proportional to 160,855.50 and 211,524
Half scale
Find third proportional to 643,422 and 846,096
Double scale
Find third proportional to 321,713 and 423,051
Similar ratio
Find third proportional to 482,566.50 and 634,572
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.