Home / 257,478-538,497

Finding the Third Proportional to 257,478 and 538,497

Calculator

Solution

The third proportional to 257,478 and 538,497 is: 1,126,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,478 : 538,497 = 538,497 : x
  2. Step 2: Convert to fraction form
    257,478/538,497 = 538,497/x
  3. Step 3: Cross multiply
    257,478x = 538,497 × 538,497
  4. Step 4: Simplify right side
    257,478x = 289,979,019,009
  5. Step 5: Solve for x
    x = 289,979,019,009/257,478
  6. Step 6: Final answer
    x = 1,126,228.33

Related Problems

Find third proportional to 128,739 and 269,248.50
Half scale
Find third proportional to 514,956 and 1,076,994
Double scale
Find third proportional to 257,480 and 538,501
Similar ratio
Find third proportional to 386,217 and 807,745.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.