Home / 270,540-420,546

Finding the Third Proportional to 270,540 and 420,546

Calculator

Solution

The third proportional to 270,540 and 420,546 is: 653,725.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,540 : 420,546 = 420,546 : x
  2. Step 2: Convert to fraction form
    270,540/420,546 = 420,546/x
  3. Step 3: Cross multiply
    270,540x = 420,546 × 420,546
  4. Step 4: Simplify right side
    270,540x = 176,858,938,116
  5. Step 5: Solve for x
    x = 176,858,938,116/270,540
  6. Step 6: Final answer
    x = 653,725.65

Related Problems

Find third proportional to 135,270 and 210,273
Half scale
Find third proportional to 541,080 and 841,092
Double scale
Find third proportional to 270,542 and 420,549
Similar ratio
Find third proportional to 405,810 and 630,819
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.