Home / 400,308-879,348

Finding the Third Proportional to 400,308 and 879,348

Calculator

Solution

The third proportional to 400,308 and 879,348 is: 1,931,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,308 : 879,348 = 879,348 : x
  2. Step 2: Convert to fraction form
    400,308/879,348 = 879,348/x
  3. Step 3: Cross multiply
    400,308x = 879,348 × 879,348
  4. Step 4: Simplify right side
    400,308x = 773,252,905,104
  5. Step 5: Solve for x
    x = 773,252,905,104/400,308
  6. Step 6: Final answer
    x = 1,931,644.90

Related Problems

Find third proportional to 200,154 and 439,674
Half scale
Find third proportional to 800,616 and 1,758,696
Double scale
Find third proportional to 400,310 and 879,352
Similar ratio
Find third proportional to 600,462 and 1,319,022
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.