Home / 718.50-1,578

Finding the Third Proportional to 718.50 and 1,578

Calculator

Solution

The third proportional to 718.50 and 1,578 is: 3,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    718.50 : 1,578 = 1,578 : x
  2. Step 2: Convert to fraction form
    718.50/1,578 = 1,578/x
  3. Step 3: Cross multiply
    718.50x = 1,578 × 1,578
  4. Step 4: Simplify right side
    718.50x = 2,490,084
  5. Step 5: Solve for x
    x = 2,490,084/718.50
  6. Step 6: Final answer
    x = 3,465.67

Related Problems

Find third proportional to 359.25 and 789
Half scale
Find third proportional to 1,437 and 3,156
Double scale
Find third proportional to 721 and 1,582
Similar ratio
Find third proportional to 1,077.75 and 2,367
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.