Home / 378,488-826,640

Finding the Third Proportional to 378,488 and 826,640

Calculator

Solution

The third proportional to 378,488 and 826,640 is: 1,805,430.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,488 : 826,640 = 826,640 : x
  2. Step 2: Convert to fraction form
    378,488/826,640 = 826,640/x
  3. Step 3: Cross multiply
    378,488x = 826,640 × 826,640
  4. Step 4: Simplify right side
    378,488x = 683,333,689,600
  5. Step 5: Solve for x
    x = 683,333,689,600/378,488
  6. Step 6: Final answer
    x = 1,805,430.26

Related Problems

Find third proportional to 189,244 and 413,320
Half scale
Find third proportional to 756,976 and 1,653,280
Double scale
Find third proportional to 378,490 and 826,644
Similar ratio
Find third proportional to 567,732 and 1,239,960
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.