Home / 1,110.76-1,666.14-623.80

Finding the Fourth Proportional to 1,110.76, 1,666.14 and 623.80

Calculator

Solution

The fourth proportional to 1,110.76, 1,666.14 and 623.80 is: 935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.76 : 1,666.14 = 623.80 : x
  2. Step 2: Convert to fraction form
    1,110.76/1,666.14 = 623.80/x
  3. Step 3: Cross multiply
    1,110.76x = 1,666.14 × 623.80
  4. Step 4: Simplify right side
    1,110.76x = 1,039,338.13
  5. Step 5: Solve for x
    x = 1,039,338.13/1,110.76
  6. Step 6: Final answer
    x = 935.70

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.