Home / 646.40-969.12-304

Finding the Fourth Proportional to 646.40, 969.12 and 304

Calculator

Solution

The fourth proportional to 646.40, 969.12 and 304 is: 455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    646.40 : 969.12 = 304 : x
  2. Step 2: Convert to fraction form
    646.40/969.12 = 304/x
  3. Step 3: Cross multiply
    646.40x = 969.12 × 304
  4. Step 4: Simplify right side
    646.40x = 294,612.48
  5. Step 5: Solve for x
    x = 294,612.48/646.40
  6. Step 6: Final answer
    x = 455.77

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.