Home / 557,178-787,653

Finding the Third Proportional to 557,178 and 787,653

Calculator

Solution

The third proportional to 557,178 and 787,653 is: 1,113,463.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,178 : 787,653 = 787,653 : x
  2. Step 2: Convert to fraction form
    557,178/787,653 = 787,653/x
  3. Step 3: Cross multiply
    557,178x = 787,653 × 787,653
  4. Step 4: Simplify right side
    557,178x = 620,397,248,409
  5. Step 5: Solve for x
    x = 620,397,248,409/557,178
  6. Step 6: Final answer
    x = 1,113,463.29

Related Problems

Find third proportional to 278,589 and 393,826.50
Half scale
Find third proportional to 1,114,356 and 1,575,306
Double scale
Find third proportional to 557,180 and 787,656
Similar ratio
Find third proportional to 835,767 and 1,181,479.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.