Home / 393,988-577,005

Finding the Third Proportional to 393,988 and 577,005

Calculator

Solution

The third proportional to 393,988 and 577,005 is: 845,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,988 : 577,005 = 577,005 : x
  2. Step 2: Convert to fraction form
    393,988/577,005 = 577,005/x
  3. Step 3: Cross multiply
    393,988x = 577,005 × 577,005
  4. Step 4: Simplify right side
    393,988x = 332,934,770,025
  5. Step 5: Solve for x
    x = 332,934,770,025/393,988
  6. Step 6: Final answer
    x = 845,037.84

Related Problems

Find third proportional to 196,994 and 288,502.50
Half scale
Find third proportional to 787,976 and 1,154,010
Double scale
Find third proportional to 393,990 and 577,008
Similar ratio
Find third proportional to 590,982 and 865,507.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.