Home / 916.49-1,374.99-331.47

Finding the Fourth Proportional to 916.49, 1,374.99 and 331.47

Calculator

Solution

The fourth proportional to 916.49, 1,374.99 and 331.47 is: 497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    916.49 : 1,374.99 = 331.47 : x
  2. Step 2: Convert to fraction form
    916.49/1,374.99 = 331.47/x
  3. Step 3: Cross multiply
    916.49x = 1,374.99 × 331.47
  4. Step 4: Simplify right side
    916.49x = 455,764.34
  5. Step 5: Solve for x
    x = 455,764.34/916.49
  6. Step 6: Final answer
    x = 497.29

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.