Home / 280,542-434,601

Finding the Third Proportional to 280,542 and 434,601

Calculator

Solution

The third proportional to 280,542 and 434,601 is: 673,261.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,542 : 434,601 = 434,601 : x
  2. Step 2: Convert to fraction form
    280,542/434,601 = 434,601/x
  3. Step 3: Cross multiply
    280,542x = 434,601 × 434,601
  4. Step 4: Simplify right side
    280,542x = 188,878,029,201
  5. Step 5: Solve for x
    x = 188,878,029,201/280,542
  6. Step 6: Final answer
    x = 673,261.15

Related Problems

Find third proportional to 140,271 and 217,300.50
Half scale
Find third proportional to 561,084 and 869,202
Double scale
Find third proportional to 280,544 and 434,604
Similar ratio
Find third proportional to 420,813 and 651,901.50
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.