Home / 692.51-1,038.80-327.65

Finding the Fourth Proportional to 692.51, 1,038.80 and 327.65

Calculator

Solution

The fourth proportional to 692.51, 1,038.80 and 327.65 is: 491.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.51 : 1,038.80 = 327.65 : x
  2. Step 2: Convert to fraction form
    692.51/1,038.80 = 327.65/x
  3. Step 3: Cross multiply
    692.51x = 1,038.80 × 327.65
  4. Step 4: Simplify right side
    692.51x = 340,358.45
  5. Step 5: Solve for x
    x = 340,358.45/692.51
  6. Step 6: Final answer
    x = 491.49

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.