Home / 257,696-559,520

Finding the Third Proportional to 257,696 and 559,520

Calculator

Solution

The third proportional to 257,696 and 559,520 is: 1,214,852.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,696 : 559,520 = 559,520 : x
  2. Step 2: Convert to fraction form
    257,696/559,520 = 559,520/x
  3. Step 3: Cross multiply
    257,696x = 559,520 × 559,520
  4. Step 4: Simplify right side
    257,696x = 313,062,630,400
  5. Step 5: Solve for x
    x = 313,062,630,400/257,696
  6. Step 6: Final answer
    x = 1,214,852.50

Related Problems

Find third proportional to 128,848 and 279,760
Half scale
Find third proportional to 515,392 and 1,119,040
Double scale
Find third proportional to 257,698 and 559,524
Similar ratio
Find third proportional to 386,544 and 839,280
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.