Home / 398,830-598,542

Finding the Third Proportional to 398,830 and 598,542

Calculator

Solution

The third proportional to 398,830 and 598,542 is: 898,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,830 : 598,542 = 598,542 : x
  2. Step 2: Convert to fraction form
    398,830/598,542 = 598,542/x
  3. Step 3: Cross multiply
    398,830x = 598,542 × 598,542
  4. Step 4: Simplify right side
    398,830x = 358,252,525,764
  5. Step 5: Solve for x
    x = 358,252,525,764/398,830
  6. Step 6: Final answer
    x = 898,258.72

Related Problems

Find third proportional to 199,415 and 299,271
Half scale
Find third proportional to 797,660 and 1,197,084
Double scale
Find third proportional to 398,832 and 598,545
Similar ratio
Find third proportional to 598,245 and 897,813
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.