Home / 275,460-425,647

Finding the Third Proportional to 275,460 and 425,647

Calculator

Solution

The third proportional to 275,460 and 425,647 is: 657,719.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,460 : 425,647 = 425,647 : x
  2. Step 2: Convert to fraction form
    275,460/425,647 = 425,647/x
  3. Step 3: Cross multiply
    275,460x = 425,647 × 425,647
  4. Step 4: Simplify right side
    275,460x = 181,175,368,609
  5. Step 5: Solve for x
    x = 181,175,368,609/275,460
  6. Step 6: Final answer
    x = 657,719.34

Related Problems

Find third proportional to 137,730 and 212,823.50
Half scale
Find third proportional to 550,920 and 851,294
Double scale
Find third proportional to 275,462 and 425,650
Similar ratio
Find third proportional to 413,190 and 638,470.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.