Home / 646.60-892.24-384.58

Finding the Fourth Proportional to 646.60, 892.24 and 384.58

Calculator

Solution

The fourth proportional to 646.60, 892.24 and 384.58 is: 530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.60 : 892.24 = 384.58 : x
  2. Step 2: Convert to fraction form
    646.60/892.24 = 384.58/x
  3. Step 3: Cross multiply
    646.60x = 892.24 × 384.58
  4. Step 4: Simplify right side
    646.60x = 343,137.66
  5. Step 5: Solve for x
    x = 343,137.66/646.60
  6. Step 6: Final answer
    x = 530.68

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.