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Finding the Fourth Proportional to 1,000.94, 1,495.58 and 880.65

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Solution

The fourth proportional to 1,000.94, 1,495.58 and 880.65 is: 1,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000.94 : 1,495.58 = 880.65 : x
  2. Step 2: Convert to fraction form
    1,000.94/1,495.58 = 880.65/x
  3. Step 3: Cross multiply
    1,000.94x = 1,495.58 × 880.65
  4. Step 4: Simplify right side
    1,000.94x = 1,317,078.12
  5. Step 5: Solve for x
    x = 1,317,078.12/1,000.94
  6. Step 6: Final answer
    x = 1,315.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.