Home / 1,117.99-1,676.94-387.73

Finding the Fourth Proportional to 1,117.99, 1,676.94 and 387.73

Calculator

Solution

The fourth proportional to 1,117.99, 1,676.94 and 387.73 is: 581.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.99 : 1,676.94 = 387.73 : x
  2. Step 2: Convert to fraction form
    1,117.99/1,676.94 = 387.73/x
  3. Step 3: Cross multiply
    1,117.99x = 1,676.94 × 387.73
  4. Step 4: Simplify right side
    1,117.99x = 650,199.95
  5. Step 5: Solve for x
    x = 650,199.95/1,117.99
  6. Step 6: Final answer
    x = 581.58

Related Problems

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.