Home / 291,072-434,810

Finding the Third Proportional to 291,072 and 434,810

Calculator

Solution

The third proportional to 291,072 and 434,810 is: 649,529.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,072 : 434,810 = 434,810 : x
  2. Step 2: Convert to fraction form
    291,072/434,810 = 434,810/x
  3. Step 3: Cross multiply
    291,072x = 434,810 × 434,810
  4. Step 4: Simplify right side
    291,072x = 189,059,736,100
  5. Step 5: Solve for x
    x = 189,059,736,100/291,072
  6. Step 6: Final answer
    x = 649,529.11

Related Problems

Find third proportional to 145,536 and 217,405
Half scale
Find third proportional to 582,144 and 869,620
Double scale
Find third proportional to 291,074 and 434,813
Similar ratio
Find third proportional to 436,608 and 652,215
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.