Home / 378,812-841,708

Finding the Third Proportional to 378,812 and 841,708

Calculator

Solution

The third proportional to 378,812 and 841,708 is: 1,870,247.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,812 : 841,708 = 841,708 : x
  2. Step 2: Convert to fraction form
    378,812/841,708 = 841,708/x
  3. Step 3: Cross multiply
    378,812x = 841,708 × 841,708
  4. Step 4: Simplify right side
    378,812x = 708,472,357,264
  5. Step 5: Solve for x
    x = 708,472,357,264/378,812
  6. Step 6: Final answer
    x = 1,870,247.93

Related Problems

Find third proportional to 189,406 and 420,854
Half scale
Find third proportional to 757,624 and 1,683,416
Double scale
Find third proportional to 378,814 and 841,712
Similar ratio
Find third proportional to 568,218 and 1,262,562
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.