Home / 310,439-681,844

Finding the Third Proportional to 310,439 and 681,844

Calculator

Solution

The third proportional to 310,439 and 681,844 is: 1,497,592.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,439 : 681,844 = 681,844 : x
  2. Step 2: Convert to fraction form
    310,439/681,844 = 681,844/x
  3. Step 3: Cross multiply
    310,439x = 681,844 × 681,844
  4. Step 4: Simplify right side
    310,439x = 464,911,240,336
  5. Step 5: Solve for x
    x = 464,911,240,336/310,439
  6. Step 6: Final answer
    x = 1,497,592.89

Related Problems

Find third proportional to 155,219.50 and 340,922
Half scale
Find third proportional to 620,878 and 1,363,688
Double scale
Find third proportional to 310,441 and 681,848
Similar ratio
Find third proportional to 465,658.50 and 1,022,766
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.