Home / 305,972-662,780

Finding the Third Proportional to 305,972 and 662,780

Calculator

Solution

The third proportional to 305,972 and 662,780 is: 1,435,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,972 : 662,780 = 662,780 : x
  2. Step 2: Convert to fraction form
    305,972/662,780 = 662,780/x
  3. Step 3: Cross multiply
    305,972x = 662,780 × 662,780
  4. Step 4: Simplify right side
    305,972x = 439,277,328,400
  5. Step 5: Solve for x
    x = 439,277,328,400/305,972
  6. Step 6: Final answer
    x = 1,435,678.19

Related Problems

Find third proportional to 152,986 and 331,390
Half scale
Find third proportional to 611,944 and 1,325,560
Double scale
Find third proportional to 305,974 and 662,784
Similar ratio
Find third proportional to 458,958 and 994,170
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.