Home / 669.50-1,038

Finding the Third Proportional to 669.50 and 1,038

Calculator

Solution

The third proportional to 669.50 and 1,038 is: 1,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.50 : 1,038 = 1,038 : x
  2. Step 2: Convert to fraction form
    669.50/1,038 = 1,038/x
  3. Step 3: Cross multiply
    669.50x = 1,038 × 1,038
  4. Step 4: Simplify right side
    669.50x = 1,077,444
  5. Step 5: Solve for x
    x = 1,077,444/669.50
  6. Step 6: Final answer
    x = 1,609.33

Related Problems

Find third proportional to 334.75 and 519
Half scale
Find third proportional to 1,339 and 2,076
Double scale
Find third proportional to 672 and 1,041
Similar ratio
Find third proportional to 1,004.25 and 1,557
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.