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Finding the Fourth Proportional to 595.78, 892.19 and 390.14

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Solution

The fourth proportional to 595.78, 892.19 and 390.14 is: 584.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.78 : 892.19 = 390.14 : x
  2. Step 2: Convert to fraction form
    595.78/892.19 = 390.14/x
  3. Step 3: Cross multiply
    595.78x = 892.19 × 390.14
  4. Step 4: Simplify right side
    595.78x = 348,079.01
  5. Step 5: Solve for x
    x = 348,079.01/595.78
  6. Step 6: Final answer
    x = 584.24

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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.