Home / 378,738-589,131

Finding the Third Proportional to 378,738 and 589,131

Calculator

Solution

The third proportional to 378,738 and 589,131 is: 916,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,738 : 589,131 = 589,131 : x
  2. Step 2: Convert to fraction form
    378,738/589,131 = 589,131/x
  3. Step 3: Cross multiply
    378,738x = 589,131 × 589,131
  4. Step 4: Simplify right side
    378,738x = 347,075,335,161
  5. Step 5: Solve for x
    x = 347,075,335,161/378,738
  6. Step 6: Final answer
    x = 916,399.56

Related Problems

Find third proportional to 189,369 and 294,565.50
Half scale
Find third proportional to 757,476 and 1,178,262
Double scale
Find third proportional to 378,740 and 589,134
Similar ratio
Find third proportional to 568,107 and 883,696.50
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.