Home / 1,042.47-1,563.72-312.06

Finding the Fourth Proportional to 1,042.47, 1,563.72 and 312.06

Calculator

Solution

The fourth proportional to 1,042.47, 1,563.72 and 312.06 is: 468.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.47 : 1,563.72 = 312.06 : x
  2. Step 2: Convert to fraction form
    1,042.47/1,563.72 = 312.06/x
  3. Step 3: Cross multiply
    1,042.47x = 1,563.72 × 312.06
  4. Step 4: Simplify right side
    1,042.47x = 487,974.46
  5. Step 5: Solve for x
    x = 487,974.46/1,042.47
  6. Step 6: Final answer
    x = 468.09

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.