Home / 445,028-688,660

Finding the Third Proportional to 445,028 and 688,660

Calculator

Solution

The third proportional to 445,028 and 688,660 is: 1,065,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,028 : 688,660 = 688,660 : x
  2. Step 2: Convert to fraction form
    445,028/688,660 = 688,660/x
  3. Step 3: Cross multiply
    445,028x = 688,660 × 688,660
  4. Step 4: Simplify right side
    445,028x = 474,252,595,600
  5. Step 5: Solve for x
    x = 474,252,595,600/445,028
  6. Step 6: Final answer
    x = 1,065,669.12

Related Problems

Find third proportional to 222,514 and 344,330
Half scale
Find third proportional to 890,056 and 1,377,320
Double scale
Find third proportional to 445,030 and 688,663
Similar ratio
Find third proportional to 667,542 and 1,032,990
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.