Home / 927.26-1,390.89-278.00

Finding the Fourth Proportional to 927.26, 1,390.89 and 278.00

Calculator

Solution

The fourth proportional to 927.26, 1,390.89 and 278.00 is: 417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.26 : 1,390.89 = 278.00 : x
  2. Step 2: Convert to fraction form
    927.26/1,390.89 = 278.00/x
  3. Step 3: Cross multiply
    927.26x = 1,390.89 × 278.00
  4. Step 4: Simplify right side
    927.26x = 386,666.72
  5. Step 5: Solve for x
    x = 386,666.72/927.26
  6. Step 6: Final answer
    x = 417.00

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.