Home / 280,620-427,932

Finding the Third Proportional to 280,620 and 427,932

Calculator

Solution

The third proportional to 280,620 and 427,932 is: 652,575.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,620 : 427,932 = 427,932 : x
  2. Step 2: Convert to fraction form
    280,620/427,932 = 427,932/x
  3. Step 3: Cross multiply
    280,620x = 427,932 × 427,932
  4. Step 4: Simplify right side
    280,620x = 183,125,796,624
  5. Step 5: Solve for x
    x = 183,125,796,624/280,620
  6. Step 6: Final answer
    x = 652,575.71

Related Problems

Find third proportional to 140,310 and 213,966
Half scale
Find third proportional to 561,240 and 855,864
Double scale
Find third proportional to 280,622 and 427,935
Similar ratio
Find third proportional to 420,930 and 641,898
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.