Home / 397,003-865,388

Finding the Third Proportional to 397,003 and 865,388

Calculator

Solution

The third proportional to 397,003 and 865,388 is: 1,886,374.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,003 : 865,388 = 865,388 : x
  2. Step 2: Convert to fraction form
    397,003/865,388 = 865,388/x
  3. Step 3: Cross multiply
    397,003x = 865,388 × 865,388
  4. Step 4: Simplify right side
    397,003x = 748,896,390,544
  5. Step 5: Solve for x
    x = 748,896,390,544/397,003
  6. Step 6: Final answer
    x = 1,886,374.64

Related Problems

Find third proportional to 198,501.50 and 432,694
Half scale
Find third proportional to 794,006 and 1,730,776
Double scale
Find third proportional to 397,005 and 865,392
Similar ratio
Find third proportional to 595,504.50 and 1,298,082
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.