Home / 915.69-1,263.33-522.43

Finding the Fourth Proportional to 915.69, 1,263.33 and 522.43

Calculator

Solution

The fourth proportional to 915.69, 1,263.33 and 522.43 is: 720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.69 : 1,263.33 = 522.43 : x
  2. Step 2: Convert to fraction form
    915.69/1,263.33 = 522.43/x
  3. Step 3: Cross multiply
    915.69x = 1,263.33 × 522.43
  4. Step 4: Simplify right side
    915.69x = 660,001.49
  5. Step 5: Solve for x
    x = 660,001.49/915.69
  6. Step 6: Final answer
    x = 720.77

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.