Home / 378,780-841,641

Finding the Third Proportional to 378,780 and 841,641

Calculator

Solution

The third proportional to 378,780 and 841,641 is: 1,870,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,780 : 841,641 = 841,641 : x
  2. Step 2: Convert to fraction form
    378,780/841,641 = 841,641/x
  3. Step 3: Cross multiply
    378,780x = 841,641 × 841,641
  4. Step 4: Simplify right side
    378,780x = 708,359,572,881
  5. Step 5: Solve for x
    x = 708,359,572,881/378,780
  6. Step 6: Final answer
    x = 1,870,108.17

Related Problems

Find third proportional to 189,390 and 420,820.50
Half scale
Find third proportional to 757,560 and 1,683,282
Double scale
Find third proportional to 378,782 and 841,645
Similar ratio
Find third proportional to 568,170 and 1,262,461.50
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.