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Finding the Fourth Proportional to 529.85, 795.08 and 425.84

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Solution

The fourth proportional to 529.85, 795.08 and 425.84 is: 639.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.85 : 795.08 = 425.84 : x
  2. Step 2: Convert to fraction form
    529.85/795.08 = 425.84/x
  3. Step 3: Cross multiply
    529.85x = 795.08 × 425.84
  4. Step 4: Simplify right side
    529.85x = 338,576.73
  5. Step 5: Solve for x
    x = 338,576.73/529.85
  6. Step 6: Final answer
    x = 639.00

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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.