Home / 776.54-1,165.01-289.59

Finding the Fourth Proportional to 776.54, 1,165.01 and 289.59

Calculator

Solution

The fourth proportional to 776.54, 1,165.01 and 289.59 is: 434.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    776.54 : 1,165.01 = 289.59 : x
  2. Step 2: Convert to fraction form
    776.54/1,165.01 = 289.59/x
  3. Step 3: Cross multiply
    776.54x = 1,165.01 × 289.59
  4. Step 4: Simplify right side
    776.54x = 337,379.80
  5. Step 5: Solve for x
    x = 337,379.80/776.54
  6. Step 6: Final answer
    x = 434.47

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.