Home / 397,164-555,570

Finding the Third Proportional to 397,164 and 555,570

Calculator

Solution

The third proportional to 397,164 and 555,570 is: 777,155.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,164 : 555,570 = 555,570 : x
  2. Step 2: Convert to fraction form
    397,164/555,570 = 555,570/x
  3. Step 3: Cross multiply
    397,164x = 555,570 × 555,570
  4. Step 4: Simplify right side
    397,164x = 308,658,024,900
  5. Step 5: Solve for x
    x = 308,658,024,900/397,164
  6. Step 6: Final answer
    x = 777,155.09

Related Problems

Find third proportional to 198,582 and 277,785
Half scale
Find third proportional to 794,328 and 1,111,140
Double scale
Find third proportional to 397,166 and 555,573
Similar ratio
Find third proportional to 595,746 and 833,355
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.