Home / 518,586-777,879-168,378

Finding the Fourth Proportional to 518,586, 777,879 and 168,378

Calculator

Solution

The fourth proportional to 518,586, 777,879 and 168,378 is: 252,567

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,586 : 777,879 = 168,378 : x
  2. Step 2: Convert to fraction form
    518,586/777,879 = 168,378/x
  3. Step 3: Cross multiply
    518,586x = 777,879 × 168,378
  4. Step 4: Simplify right side
    518,586x = 130,977,710,262
  5. Step 5: Solve for x
    x = 130,977,710,262/518,586
  6. Step 6: Final answer
    x = 252,567

Related Problems

Find fourth proportional to 259,293, 388,939.50 and 84,189
Half scale
Find fourth proportional to 1,037,172, 1,555,758 and 336,756
Double scale
Find fourth proportional to 518,587, 777,880.50 and 168,379
Similar ratio
Find fourth proportional to 777,879, 1,166,818.50 and 252,567
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.