Home / 378,784-841,647

Finding the Third Proportional to 378,784 and 841,647

Calculator

Solution

The third proportional to 378,784 and 841,647 is: 1,870,115.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,784 : 841,647 = 841,647 : x
  2. Step 2: Convert to fraction form
    378,784/841,647 = 841,647/x
  3. Step 3: Cross multiply
    378,784x = 841,647 × 841,647
  4. Step 4: Simplify right side
    378,784x = 708,369,672,609
  5. Step 5: Solve for x
    x = 708,369,672,609/378,784
  6. Step 6: Final answer
    x = 1,870,115.09

Related Problems

Find third proportional to 189,392 and 420,823.50
Half scale
Find third proportional to 757,568 and 1,683,294
Double scale
Find third proportional to 378,786 and 841,651
Similar ratio
Find third proportional to 568,176 and 1,262,470.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.