Home / 642,884-964,326-248,900

Finding the Fourth Proportional to 642,884, 964,326 and 248,900

Calculator

Solution

The fourth proportional to 642,884, 964,326 and 248,900 is: 373,350

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,884 : 964,326 = 248,900 : x
  2. Step 2: Convert to fraction form
    642,884/964,326 = 248,900/x
  3. Step 3: Cross multiply
    642,884x = 964,326 × 248,900
  4. Step 4: Simplify right side
    642,884x = 240,020,741,400
  5. Step 5: Solve for x
    x = 240,020,741,400/642,884
  6. Step 6: Final answer
    x = 373,350

Related Problems

Find fourth proportional to 321,442, 482,163 and 124,450
Half scale
Find fourth proportional to 1,285,768, 1,928,652 and 497,800
Double scale
Find fourth proportional to 642,885, 964,327.50 and 248,901
Similar ratio
Find fourth proportional to 964,326, 1,446,489 and 373,350
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.