Home / 470.25-729.75

Finding the Third Proportional to 470.25 and 729.75

Calculator

Solution

The third proportional to 470.25 and 729.75 is: 1,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.25 : 729.75 = 729.75 : x
  2. Step 2: Convert to fraction form
    470.25/729.75 = 729.75/x
  3. Step 3: Cross multiply
    470.25x = 729.75 × 729.75
  4. Step 4: Simplify right side
    470.25x = 532,535.06
  5. Step 5: Solve for x
    x = 532,535.06/470.25
  6. Step 6: Final answer
    x = 1,132.45

Related Problems

Find third proportional to 235.13 and 364.88
Half scale
Find third proportional to 940.50 and 1,459.50
Double scale
Find third proportional to 472 and 733
Similar ratio
Find third proportional to 705.38 and 1,094.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.