Home / 421,692-670,077

Finding the Third Proportional to 421,692 and 670,077

Calculator

Solution

The third proportional to 421,692 and 670,077 is: 1,064,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,692 : 670,077 = 670,077 : x
  2. Step 2: Convert to fraction form
    421,692/670,077 = 670,077/x
  3. Step 3: Cross multiply
    421,692x = 670,077 × 670,077
  4. Step 4: Simplify right side
    421,692x = 449,003,185,929
  5. Step 5: Solve for x
    x = 449,003,185,929/421,692
  6. Step 6: Final answer
    x = 1,064,765.72

Related Problems

Find third proportional to 210,846 and 335,038.50
Half scale
Find third proportional to 843,384 and 1,340,154
Double scale
Find third proportional to 421,694 and 670,080
Similar ratio
Find third proportional to 632,538 and 1,005,115.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.