Home / 540,978-842,085

Finding the Third Proportional to 540,978 and 842,085

Calculator

Solution

The third proportional to 540,978 and 842,085 is: 1,310,787.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,978 : 842,085 = 842,085 : x
  2. Step 2: Convert to fraction form
    540,978/842,085 = 842,085/x
  3. Step 3: Cross multiply
    540,978x = 842,085 × 842,085
  4. Step 4: Simplify right side
    540,978x = 709,107,147,225
  5. Step 5: Solve for x
    x = 709,107,147,225/540,978
  6. Step 6: Final answer
    x = 1,310,787.40

Related Problems

Find third proportional to 270,489 and 421,042.50
Half scale
Find third proportional to 1,081,956 and 1,684,170
Double scale
Find third proportional to 540,980 and 842,088
Similar ratio
Find third proportional to 811,467 and 1,263,127.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.