Home / 690.99-1,036.65-366.30

Finding the Fourth Proportional to 690.99, 1,036.65 and 366.30

Calculator

Solution

The fourth proportional to 690.99, 1,036.65 and 366.30 is: 549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    690.99 : 1,036.65 = 366.30 : x
  2. Step 2: Convert to fraction form
    690.99/1,036.65 = 366.30/x
  3. Step 3: Cross multiply
    690.99x = 1,036.65 × 366.30
  4. Step 4: Simplify right side
    690.99x = 379,724.90
  5. Step 5: Solve for x
    x = 379,724.90/690.99
  6. Step 6: Final answer
    x = 549.54

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.