Home / 431,388-574,705

Finding the Third Proportional to 431,388 and 574,705

Calculator

Solution

The third proportional to 431,388 and 574,705 is: 765,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,388 : 574,705 = 574,705 : x
  2. Step 2: Convert to fraction form
    431,388/574,705 = 574,705/x
  3. Step 3: Cross multiply
    431,388x = 574,705 × 574,705
  4. Step 4: Simplify right side
    431,388x = 330,285,837,025
  5. Step 5: Solve for x
    x = 330,285,837,025/431,388
  6. Step 6: Final answer
    x = 765,635.20

Related Problems

Find third proportional to 215,694 and 287,352.50
Half scale
Find third proportional to 862,776 and 1,149,410
Double scale
Find third proportional to 431,390 and 574,708
Similar ratio
Find third proportional to 647,082 and 862,057.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.