Home / 379,526-821,388

Finding the Third Proportional to 379,526 and 821,388

Calculator

Solution

The third proportional to 379,526 and 821,388 is: 1,777,686.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,526 : 821,388 = 821,388 : x
  2. Step 2: Convert to fraction form
    379,526/821,388 = 821,388/x
  3. Step 3: Cross multiply
    379,526x = 821,388 × 821,388
  4. Step 4: Simplify right side
    379,526x = 674,678,246,544
  5. Step 5: Solve for x
    x = 674,678,246,544/379,526
  6. Step 6: Final answer
    x = 1,777,686.50

Related Problems

Find third proportional to 189,763 and 410,694
Half scale
Find third proportional to 759,052 and 1,642,776
Double scale
Find third proportional to 379,528 and 821,392
Similar ratio
Find third proportional to 569,289 and 1,232,082
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.