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Finding the Fourth Proportional to 994.94, 1,488.72 and 598.22

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Solution

The fourth proportional to 994.94, 1,488.72 and 598.22 is: 895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    994.94 : 1,488.72 = 598.22 : x
  2. Step 2: Convert to fraction form
    994.94/1,488.72 = 598.22/x
  3. Step 3: Cross multiply
    994.94x = 1,488.72 × 598.22
  4. Step 4: Simplify right side
    994.94x = 890,582.08
  5. Step 5: Solve for x
    x = 890,582.08/994.94
  6. Step 6: Final answer
    x = 895.11

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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.