Home / 641,212-1,000,640

Finding the Third Proportional to 641,212 and 1,000,640

Calculator

Solution

The third proportional to 641,212 and 1,000,640 is: 1,561,543.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,212 : 1,000,640 = 1,000,640 : x
  2. Step 2: Convert to fraction form
    641,212/1,000,640 = 1,000,640/x
  3. Step 3: Cross multiply
    641,212x = 1,000,640 × 1,000,640
  4. Step 4: Simplify right side
    641,212x = 1,001,280,409,600
  5. Step 5: Solve for x
    x = 1,001,280,409,600/641,212
  6. Step 6: Final answer
    x = 1,561,543.47

Related Problems

Find third proportional to 320,606 and 500,320
Half scale
Find third proportional to 1,282,424 and 2,001,280
Double scale
Find third proportional to 641,214 and 1,000,643
Similar ratio
Find third proportional to 961,818 and 1,500,960
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.