Home / 525,324-787,986-131,340

Finding the Fourth Proportional to 525,324, 787,986 and 131,340

Calculator

Solution

The fourth proportional to 525,324, 787,986 and 131,340 is: 197,010

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,324 : 787,986 = 131,340 : x
  2. Step 2: Convert to fraction form
    525,324/787,986 = 131,340/x
  3. Step 3: Cross multiply
    525,324x = 787,986 × 131,340
  4. Step 4: Simplify right side
    525,324x = 103,494,081,240
  5. Step 5: Solve for x
    x = 103,494,081,240/525,324
  6. Step 6: Final answer
    x = 197,010

Related Problems

Find fourth proportional to 262,662, 393,993 and 65,670
Half scale
Find fourth proportional to 1,050,648, 1,575,972 and 262,680
Double scale
Find fourth proportional to 525,325, 787,987.50 and 131,341
Similar ratio
Find fourth proportional to 787,986, 1,181,979 and 197,010
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.