Home / 1,145.04-1,716.53-414.11

Finding the Fourth Proportional to 1,145.04, 1,716.53 and 414.11

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Solution

The fourth proportional to 1,145.04, 1,716.53 and 414.11 is: 620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145.04 : 1,716.53 = 414.11 : x
  2. Step 2: Convert to fraction form
    1,145.04/1,716.53 = 414.11/x
  3. Step 3: Cross multiply
    1,145.04x = 1,716.53 × 414.11
  4. Step 4: Simplify right side
    1,145.04x = 710,832.24
  5. Step 5: Solve for x
    x = 710,832.24/1,145.04
  6. Step 6: Final answer
    x = 620.79

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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.