Home / 920.57-1,269.70-625.33

Finding the Fourth Proportional to 920.57, 1,269.70 and 625.33

Calculator

Solution

The fourth proportional to 920.57, 1,269.70 and 625.33 is: 862.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    920.57 : 1,269.70 = 625.33 : x
  2. Step 2: Convert to fraction form
    920.57/1,269.70 = 625.33/x
  3. Step 3: Cross multiply
    920.57x = 1,269.70 × 625.33
  4. Step 4: Simplify right side
    920.57x = 793,976.76
  5. Step 5: Solve for x
    x = 793,976.76/920.57
  6. Step 6: Final answer
    x = 862.48

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.