Home / 641,220-1,000,647

Finding the Third Proportional to 641,220 and 1,000,647

Calculator

Solution

The third proportional to 641,220 and 1,000,647 is: 1,561,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,220 : 1,000,647 = 1,000,647 : x
  2. Step 2: Convert to fraction form
    641,220/1,000,647 = 1,000,647/x
  3. Step 3: Cross multiply
    641,220x = 1,000,647 × 1,000,647
  4. Step 4: Simplify right side
    641,220x = 1,001,294,418,609
  5. Step 5: Solve for x
    x = 1,001,294,418,609/641,220
  6. Step 6: Final answer
    x = 1,561,545.83

Related Problems

Find third proportional to 320,610 and 500,323.50
Half scale
Find third proportional to 1,282,440 and 2,001,294
Double scale
Find third proportional to 641,222 and 1,000,650
Similar ratio
Find third proportional to 961,830 and 1,500,970.50
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.