Home / 257,018-556,942

Finding the Third Proportional to 257,018 and 556,942

Calculator

Solution

The third proportional to 257,018 and 556,942 is: 1,206,858.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,018 : 556,942 = 556,942 : x
  2. Step 2: Convert to fraction form
    257,018/556,942 = 556,942/x
  3. Step 3: Cross multiply
    257,018x = 556,942 × 556,942
  4. Step 4: Simplify right side
    257,018x = 310,184,391,364
  5. Step 5: Solve for x
    x = 310,184,391,364/257,018
  6. Step 6: Final answer
    x = 1,206,858.63

Related Problems

Find third proportional to 128,509 and 278,471
Half scale
Find third proportional to 514,036 and 1,113,884
Double scale
Find third proportional to 257,020 and 556,946
Similar ratio
Find third proportional to 385,527 and 835,413
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.