Home / 870-1,305.04-437.04

Finding the Fourth Proportional to 870, 1,305.04 and 437.04

Calculator

Solution

The fourth proportional to 870, 1,305.04 and 437.04 is: 655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    870 : 1,305.04 = 437.04 : x
  2. Step 2: Convert to fraction form
    870/1,305.04 = 437.04/x
  3. Step 3: Cross multiply
    870x = 1,305.04 × 437.04
  4. Step 4: Simplify right side
    870x = 570,354.68
  5. Step 5: Solve for x
    x = 570,354.68/870
  6. Step 6: Final answer
    x = 655.58

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.