Home / 1,338,810-2,008,215-341,538

Finding the Fourth Proportional to 1,338,810, 2,008,215 and 341,538

Calculator

Solution

The fourth proportional to 1,338,810, 2,008,215 and 341,538 is: 512,307

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,810 : 2,008,215 = 341,538 : x
  2. Step 2: Convert to fraction form
    1,338,810/2,008,215 = 341,538/x
  3. Step 3: Cross multiply
    1,338,810x = 2,008,215 × 341,538
  4. Step 4: Simplify right side
    1,338,810x = 685,881,734,670
  5. Step 5: Solve for x
    x = 685,881,734,670/1,338,810
  6. Step 6: Final answer
    x = 512,307

Related Problems

Find fourth proportional to 669,405, 1,004,107.50 and 170,769
Half scale
Find fourth proportional to 2,677,620, 4,016,430 and 683,076
Double scale
Find fourth proportional to 1,338,811, 2,008,216.50 and 341,539
Similar ratio
Find fourth proportional to 2,008,215, 3,012,322.50 and 512,307
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.