Home / 651-976.56-309

Finding the Fourth Proportional to 651, 976.56 and 309

Calculator

Solution

The fourth proportional to 651, 976.56 and 309 is: 463.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    651 : 976.56 = 309 : x
  2. Step 2: Convert to fraction form
    651/976.56 = 309/x
  3. Step 3: Cross multiply
    651x = 976.56 × 309
  4. Step 4: Simplify right side
    651x = 301,757.04
  5. Step 5: Solve for x
    x = 301,757.04/651
  6. Step 6: Final answer
    x = 463.53

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.