Home / 507.75-742.50

Finding the Third Proportional to 507.75 and 742.50

Calculator

Solution

The third proportional to 507.75 and 742.50 is: 1,085.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.75 : 742.50 = 742.50 : x
  2. Step 2: Convert to fraction form
    507.75/742.50 = 742.50/x
  3. Step 3: Cross multiply
    507.75x = 742.50 × 742.50
  4. Step 4: Simplify right side
    507.75x = 551,306.25
  5. Step 5: Solve for x
    x = 551,306.25/507.75
  6. Step 6: Final answer
    x = 1,085.78

Related Problems

Find third proportional to 253.88 and 371.25
Half scale
Find third proportional to 1,015.50 and 1,485
Double scale
Find third proportional to 510 and 745
Similar ratio
Find third proportional to 761.63 and 1,113.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.