Home / 1,620.07-2,429.50-579.79

Finding the Fourth Proportional to 1,620.07, 2,429.50 and 579.79

Calculator

Solution

The fourth proportional to 1,620.07, 2,429.50 and 579.79 is: 869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.07 : 2,429.50 = 579.79 : x
  2. Step 2: Convert to fraction form
    1,620.07/2,429.50 = 579.79/x
  3. Step 3: Cross multiply
    1,620.07x = 2,429.50 × 579.79
  4. Step 4: Simplify right side
    1,620.07x = 1,408,599.81
  5. Step 5: Solve for x
    x = 1,408,599.81/1,620.07
  6. Step 6: Final answer
    x = 869.47

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.