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Finding the Fourth Proportional to 1,060.27, 1,590.14 and 443.64

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Solution

The fourth proportional to 1,060.27, 1,590.14 and 443.64 is: 665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.27 : 1,590.14 = 443.64 : x
  2. Step 2: Convert to fraction form
    1,060.27/1,590.14 = 443.64/x
  3. Step 3: Cross multiply
    1,060.27x = 1,590.14 × 443.64
  4. Step 4: Simplify right side
    1,060.27x = 705,449.71
  5. Step 5: Solve for x
    x = 705,449.71/1,060.27
  6. Step 6: Final answer
    x = 665.35

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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.