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Finding the Fourth Proportional to 1,013.56, 1,520.88 and 364.75

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Solution

The fourth proportional to 1,013.56, 1,520.88 and 364.75 is: 547.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.56 : 1,520.88 = 364.75 : x
  2. Step 2: Convert to fraction form
    1,013.56/1,520.88 = 364.75/x
  3. Step 3: Cross multiply
    1,013.56x = 1,520.88 × 364.75
  4. Step 4: Simplify right side
    1,013.56x = 554,740.98
  5. Step 5: Solve for x
    x = 554,740.98/1,013.56
  6. Step 6: Final answer
    x = 547.32

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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.