Home / 257,069-557,042

Finding the Third Proportional to 257,069 and 557,042

Calculator

Solution

The third proportional to 257,069 and 557,042 is: 1,207,052.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,069 : 557,042 = 557,042 : x
  2. Step 2: Convert to fraction form
    257,069/557,042 = 557,042/x
  3. Step 3: Cross multiply
    257,069x = 557,042 × 557,042
  4. Step 4: Simplify right side
    257,069x = 310,295,789,764
  5. Step 5: Solve for x
    x = 310,295,789,764/257,069
  6. Step 6: Final answer
    x = 1,207,052.54

Related Problems

Find third proportional to 128,534.50 and 278,521
Half scale
Find third proportional to 514,138 and 1,114,084
Double scale
Find third proportional to 257,071 and 557,046
Similar ratio
Find third proportional to 385,603.50 and 835,563
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.