Home / 297,924-645,876

Finding the Third Proportional to 297,924 and 645,876

Calculator

Solution

The third proportional to 297,924 and 645,876 is: 1,400,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,924 : 645,876 = 645,876 : x
  2. Step 2: Convert to fraction form
    297,924/645,876 = 645,876/x
  3. Step 3: Cross multiply
    297,924x = 645,876 × 645,876
  4. Step 4: Simplify right side
    297,924x = 417,155,807,376
  5. Step 5: Solve for x
    x = 417,155,807,376/297,924
  6. Step 6: Final answer
    x = 1,400,208.80

Related Problems

Find third proportional to 148,962 and 322,938
Half scale
Find third proportional to 595,848 and 1,291,752
Double scale
Find third proportional to 297,926 and 645,880
Similar ratio
Find third proportional to 446,886 and 968,814
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.