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Finding the Fourth Proportional to 1,036.35, 1,554.44 and 305.91

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Solution

The fourth proportional to 1,036.35, 1,554.44 and 305.91 is: 458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.35 : 1,554.44 = 305.91 : x
  2. Step 2: Convert to fraction form
    1,036.35/1,554.44 = 305.91/x
  3. Step 3: Cross multiply
    1,036.35x = 1,554.44 × 305.91
  4. Step 4: Simplify right side
    1,036.35x = 475,517.21
  5. Step 5: Solve for x
    x = 475,517.21/1,036.35
  6. Step 6: Final answer
    x = 458.84

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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.