Home / 300,824-668,890

Finding the Third Proportional to 300,824 and 668,890

Calculator

Solution

The third proportional to 300,824 and 668,890 is: 1,487,294.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,824 : 668,890 = 668,890 : x
  2. Step 2: Convert to fraction form
    300,824/668,890 = 668,890/x
  3. Step 3: Cross multiply
    300,824x = 668,890 × 668,890
  4. Step 4: Simplify right side
    300,824x = 447,413,832,100
  5. Step 5: Solve for x
    x = 447,413,832,100/300,824
  6. Step 6: Final answer
    x = 1,487,294.34

Related Problems

Find third proportional to 150,412 and 334,445
Half scale
Find third proportional to 601,648 and 1,337,780
Double scale
Find third proportional to 300,826 and 668,894
Similar ratio
Find third proportional to 451,236 and 1,003,335
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.