Home / 330,972-511,437

Finding the Third Proportional to 330,972 and 511,437

Calculator

Solution

The third proportional to 330,972 and 511,437 is: 790,301.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,972 : 511,437 = 511,437 : x
  2. Step 2: Convert to fraction form
    330,972/511,437 = 511,437/x
  3. Step 3: Cross multiply
    330,972x = 511,437 × 511,437
  4. Step 4: Simplify right side
    330,972x = 261,567,804,969
  5. Step 5: Solve for x
    x = 261,567,804,969/330,972
  6. Step 6: Final answer
    x = 790,301.91

Related Problems

Find third proportional to 165,486 and 255,718.50
Half scale
Find third proportional to 661,944 and 1,022,874
Double scale
Find third proportional to 330,974 and 511,440
Similar ratio
Find third proportional to 496,458 and 767,155.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.