Home / 1,219.68-1,830.08-440.01

Finding the Fourth Proportional to 1,219.68, 1,830.08 and 440.01

Calculator

Solution

The fourth proportional to 1,219.68, 1,830.08 and 440.01 is: 660.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.68 : 1,830.08 = 440.01 : x
  2. Step 2: Convert to fraction form
    1,219.68/1,830.08 = 440.01/x
  3. Step 3: Cross multiply
    1,219.68x = 1,830.08 × 440.01
  4. Step 4: Simplify right side
    1,219.68x = 805,254.60
  5. Step 5: Solve for x
    x = 805,254.60/1,219.68
  6. Step 6: Final answer
    x = 660.22

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.