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Finding the Fourth Proportional to 578.93, 798.58 and 371.93

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Solution

The fourth proportional to 578.93, 798.58 and 371.93 is: 513.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    578.93 : 798.58 = 371.93 : x
  2. Step 2: Convert to fraction form
    578.93/798.58 = 371.93/x
  3. Step 3: Cross multiply
    578.93x = 798.58 × 371.93
  4. Step 4: Simplify right side
    578.93x = 297,015.86
  5. Step 5: Solve for x
    x = 297,015.86/578.93
  6. Step 6: Final answer
    x = 513.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.