Home / 361,140-777,780

Finding the Third Proportional to 361,140 and 777,780

Calculator

Solution

The third proportional to 361,140 and 777,780 is: 1,675,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,140 : 777,780 = 777,780 : x
  2. Step 2: Convert to fraction form
    361,140/777,780 = 777,780/x
  3. Step 3: Cross multiply
    361,140x = 777,780 × 777,780
  4. Step 4: Simplify right side
    361,140x = 604,941,728,400
  5. Step 5: Solve for x
    x = 604,941,728,400/361,140
  6. Step 6: Final answer
    x = 1,675,089.24

Related Problems

Find third proportional to 180,570 and 388,890
Half scale
Find third proportional to 722,280 and 1,555,560
Double scale
Find third proportional to 361,142 and 777,784
Similar ratio
Find third proportional to 541,710 and 1,166,670
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.