Home / 546-630

Finding the Third Proportional to 546 and 630

Calculator

Solution

The third proportional to 546 and 630 is: 726.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    546 : 630 = 630 : x
  2. Step 2: Convert to fraction form
    546/630 = 630/x
  3. Step 3: Cross multiply
    546x = 630 × 630
  4. Step 4: Simplify right side
    546x = 396,900
  5. Step 5: Solve for x
    x = 396,900/546
  6. Step 6: Final answer
    x = 726.92

Related Problems

Find third proportional to 273 and 315
Half scale
Find third proportional to 1,092 and 1,260
Double scale
Find third proportional to 548 and 632
Similar ratio
Find third proportional to 819 and 945
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.