Home / 421,650-547,181

Finding the Third Proportional to 421,650 and 547,181

Calculator

Solution

The third proportional to 421,650 and 547,181 is: 710,084.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,650 : 547,181 = 547,181 : x
  2. Step 2: Convert to fraction form
    421,650/547,181 = 547,181/x
  3. Step 3: Cross multiply
    421,650x = 547,181 × 547,181
  4. Step 4: Simplify right side
    421,650x = 299,407,046,761
  5. Step 5: Solve for x
    x = 299,407,046,761/421,650
  6. Step 6: Final answer
    x = 710,084.30

Related Problems

Find third proportional to 210,825 and 273,590.50
Half scale
Find third proportional to 843,300 and 1,094,362
Double scale
Find third proportional to 421,652 and 547,184
Similar ratio
Find third proportional to 632,475 and 820,771.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.