Home / 388,980-859,608

Finding the Third Proportional to 388,980 and 859,608

Calculator

Solution

The third proportional to 388,980 and 859,608 is: 1,899,650.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,980 : 859,608 = 859,608 : x
  2. Step 2: Convert to fraction form
    388,980/859,608 = 859,608/x
  3. Step 3: Cross multiply
    388,980x = 859,608 × 859,608
  4. Step 4: Simplify right side
    388,980x = 738,925,913,664
  5. Step 5: Solve for x
    x = 738,925,913,664/388,980
  6. Step 6: Final answer
    x = 1,899,650.15

Related Problems

Find third proportional to 194,490 and 429,804
Half scale
Find third proportional to 777,960 and 1,719,216
Double scale
Find third proportional to 388,982 and 859,612
Similar ratio
Find third proportional to 583,470 and 1,289,412
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.