Home / 421,346-921,519

Finding the Third Proportional to 421,346 and 921,519

Calculator

Solution

The third proportional to 421,346 and 921,519 is: 2,015,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,346 : 921,519 = 921,519 : x
  2. Step 2: Convert to fraction form
    421,346/921,519 = 921,519/x
  3. Step 3: Cross multiply
    421,346x = 921,519 × 921,519
  4. Step 4: Simplify right side
    421,346x = 849,197,267,361
  5. Step 5: Solve for x
    x = 849,197,267,361/421,346
  6. Step 6: Final answer
    x = 2,015,439.25

Related Problems

Find third proportional to 210,673 and 460,759.50
Half scale
Find third proportional to 842,692 and 1,843,038
Double scale
Find third proportional to 421,348 and 921,523
Similar ratio
Find third proportional to 632,019 and 1,382,278.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.