Home / 285,752-431,220

Finding the Third Proportional to 285,752 and 431,220

Calculator

Solution

The third proportional to 285,752 and 431,220 is: 650,741.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,752 : 431,220 = 431,220 : x
  2. Step 2: Convert to fraction form
    285,752/431,220 = 431,220/x
  3. Step 3: Cross multiply
    285,752x = 431,220 × 431,220
  4. Step 4: Simplify right side
    285,752x = 185,950,688,400
  5. Step 5: Solve for x
    x = 185,950,688,400/285,752
  6. Step 6: Final answer
    x = 650,741.51

Related Problems

Find third proportional to 142,876 and 215,610
Half scale
Find third proportional to 571,504 and 862,440
Double scale
Find third proportional to 285,754 and 431,223
Similar ratio
Find third proportional to 428,628 and 646,830
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.