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Finding the Fourth Proportional to 1,048.81, 1,447.33 and 583.06

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Solution

The fourth proportional to 1,048.81, 1,447.33 and 583.06 is: 804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.81 : 1,447.33 = 583.06 : x
  2. Step 2: Convert to fraction form
    1,048.81/1,447.33 = 583.06/x
  3. Step 3: Cross multiply
    1,048.81x = 1,447.33 × 583.06
  4. Step 4: Simplify right side
    1,048.81x = 843,880.23
  5. Step 5: Solve for x
    x = 843,880.23/1,048.81
  6. Step 6: Final answer
    x = 804.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.