Home / 398,974-610,391

Finding the Third Proportional to 398,974 and 610,391

Calculator

Solution

The third proportional to 398,974 and 610,391 is: 933,838.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,974 : 610,391 = 610,391 : x
  2. Step 2: Convert to fraction form
    398,974/610,391 = 610,391/x
  3. Step 3: Cross multiply
    398,974x = 610,391 × 610,391
  4. Step 4: Simplify right side
    398,974x = 372,577,172,881
  5. Step 5: Solve for x
    x = 372,577,172,881/398,974
  6. Step 6: Final answer
    x = 933,838.23

Related Problems

Find third proportional to 199,487 and 305,195.50
Half scale
Find third proportional to 797,948 and 1,220,782
Double scale
Find third proportional to 398,976 and 610,394
Similar ratio
Find third proportional to 598,461 and 915,586.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.