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Finding the Fourth Proportional to 595.90, 892.02 and 439.40

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Solution

The fourth proportional to 595.90, 892.02 and 439.40 is: 657.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    595.90 : 892.02 = 439.40 : x
  2. Step 2: Convert to fraction form
    595.90/892.02 = 439.40/x
  3. Step 3: Cross multiply
    595.90x = 892.02 × 439.40
  4. Step 4: Simplify right side
    595.90x = 391,953.59
  5. Step 5: Solve for x
    x = 391,953.59/595.90
  6. Step 6: Final answer
    x = 657.75

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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.