Home / 2,828,420-4,378,689.50

Finding the Third Proportional to 2,828,420 and 4,378,689.50

Calculator

Solution

The third proportional to 2,828,420 and 4,378,689.50 is: 6,778,668.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,828,420 : 4,378,689.50 = 4,378,689.50 : x
  2. Step 2: Convert to fraction form
    2,828,420/4,378,689.50 = 4,378,689.50/x
  3. Step 3: Cross multiply
    2,828,420x = 4,378,689.50 × 4,378,689.50
  4. Step 4: Simplify right side
    2,828,420x = 19,172,921,737,410.25
  5. Step 5: Solve for x
    x = 19,172,921,737,410.25/2,828,420
  6. Step 6: Final answer
    x = 6,778,668.56

Related Problems

Find third proportional to 1,414,210 and 2,189,344.75
Half scale
Find third proportional to 5,656,840 and 8,757,379
Double scale
Find third proportional to 2,828,422 and 4,378,693
Similar ratio
Find third proportional to 4,242,630 and 6,568,034.25
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.