Home / 1,054.89-1,455.71-612.81

Finding the Fourth Proportional to 1,054.89, 1,455.71 and 612.81

Calculator

Solution

The fourth proportional to 1,054.89, 1,455.71 and 612.81 is: 845.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.89 : 1,455.71 = 612.81 : x
  2. Step 2: Convert to fraction form
    1,054.89/1,455.71 = 612.81/x
  3. Step 3: Cross multiply
    1,054.89x = 1,455.71 × 612.81
  4. Step 4: Simplify right side
    1,054.89x = 892,070.58
  5. Step 5: Solve for x
    x = 892,070.58/1,054.89
  6. Step 6: Final answer
    x = 845.65

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.