Home / 274,638-391,982

Finding the Third Proportional to 274,638 and 391,982

Calculator

Solution

The third proportional to 274,638 and 391,982 is: 559,463.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,638 : 391,982 = 391,982 : x
  2. Step 2: Convert to fraction form
    274,638/391,982 = 391,982/x
  3. Step 3: Cross multiply
    274,638x = 391,982 × 391,982
  4. Step 4: Simplify right side
    274,638x = 153,649,888,324
  5. Step 5: Solve for x
    x = 153,649,888,324/274,638
  6. Step 6: Final answer
    x = 559,463.32

Related Problems

Find third proportional to 137,319 and 195,991
Half scale
Find third proportional to 549,276 and 783,964
Double scale
Find third proportional to 274,640 and 391,985
Similar ratio
Find third proportional to 411,957 and 587,973
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.