Home / 257,256-574,128

Finding the Third Proportional to 257,256 and 574,128

Calculator

Solution

The third proportional to 257,256 and 574,128 is: 1,281,303.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,256 : 574,128 = 574,128 : x
  2. Step 2: Convert to fraction form
    257,256/574,128 = 574,128/x
  3. Step 3: Cross multiply
    257,256x = 574,128 × 574,128
  4. Step 4: Simplify right side
    257,256x = 329,622,960,384
  5. Step 5: Solve for x
    x = 329,622,960,384/257,256
  6. Step 6: Final answer
    x = 1,281,303.29

Related Problems

Find third proportional to 128,628 and 287,064
Half scale
Find third proportional to 514,512 and 1,148,256
Double scale
Find third proportional to 257,258 and 574,132
Similar ratio
Find third proportional to 385,884 and 861,192
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.