Home / 291,010-434,722

Finding the Third Proportional to 291,010 and 434,722

Calculator

Solution

The third proportional to 291,010 and 434,722 is: 649,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,010 : 434,722 = 434,722 : x
  2. Step 2: Convert to fraction form
    291,010/434,722 = 434,722/x
  3. Step 3: Cross multiply
    291,010x = 434,722 × 434,722
  4. Step 4: Simplify right side
    291,010x = 188,983,217,284
  5. Step 5: Solve for x
    x = 188,983,217,284/291,010
  6. Step 6: Final answer
    x = 649,404.55

Related Problems

Find third proportional to 145,505 and 217,361
Half scale
Find third proportional to 582,020 and 869,444
Double scale
Find third proportional to 291,012 and 434,725
Similar ratio
Find third proportional to 436,515 and 652,083
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.