Home / 358,810-555,580

Finding the Third Proportional to 358,810 and 555,580

Calculator

Solution

The third proportional to 358,810 and 555,580 is: 860,257.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,810 : 555,580 = 555,580 : x
  2. Step 2: Convert to fraction form
    358,810/555,580 = 555,580/x
  3. Step 3: Cross multiply
    358,810x = 555,580 × 555,580
  4. Step 4: Simplify right side
    358,810x = 308,669,136,400
  5. Step 5: Solve for x
    x = 308,669,136,400/358,810
  6. Step 6: Final answer
    x = 860,257.90

Related Problems

Find third proportional to 179,405 and 277,790
Half scale
Find third proportional to 717,620 and 1,111,160
Double scale
Find third proportional to 358,812 and 555,583
Similar ratio
Find third proportional to 538,215 and 833,370
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.