Home / 331,312-715,518

Finding the Third Proportional to 331,312 and 715,518

Calculator

Solution

The third proportional to 331,312 and 715,518 is: 1,545,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,312 : 715,518 = 715,518 : x
  2. Step 2: Convert to fraction form
    331,312/715,518 = 715,518/x
  3. Step 3: Cross multiply
    331,312x = 715,518 × 715,518
  4. Step 4: Simplify right side
    331,312x = 511,966,008,324
  5. Step 5: Solve for x
    x = 511,966,008,324/331,312
  6. Step 6: Final answer
    x = 1,545,268.53

Related Problems

Find third proportional to 165,656 and 357,759
Half scale
Find third proportional to 662,624 and 1,431,036
Double scale
Find third proportional to 331,314 and 715,522
Similar ratio
Find third proportional to 496,968 and 1,073,277
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.