Home / 297,926-645,880

Finding the Third Proportional to 297,926 and 645,880

Calculator

Solution

The third proportional to 297,926 and 645,880 is: 1,400,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,926 : 645,880 = 645,880 : x
  2. Step 2: Convert to fraction form
    297,926/645,880 = 645,880/x
  3. Step 3: Cross multiply
    297,926x = 645,880 × 645,880
  4. Step 4: Simplify right side
    297,926x = 417,160,974,400
  5. Step 5: Solve for x
    x = 417,160,974,400/297,926
  6. Step 6: Final answer
    x = 1,400,216.75

Related Problems

Find third proportional to 148,963 and 322,940
Half scale
Find third proportional to 595,852 and 1,291,760
Double scale
Find third proportional to 297,928 and 645,884
Similar ratio
Find third proportional to 446,889 and 968,820
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.