Home / 920.04-1,379.53-303.58

Finding the Fourth Proportional to 920.04, 1,379.53 and 303.58

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Solution

The fourth proportional to 920.04, 1,379.53 and 303.58 is: 455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    920.04 : 1,379.53 = 303.58 : x
  2. Step 2: Convert to fraction form
    920.04/1,379.53 = 303.58/x
  3. Step 3: Cross multiply
    920.04x = 1,379.53 × 303.58
  4. Step 4: Simplify right side
    920.04x = 418,794.65
  5. Step 5: Solve for x
    x = 418,794.65/920.04
  6. Step 6: Final answer
    x = 455.19

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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.