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Finding the Fourth Proportional to 583.63, 874.93 and 309.91

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Solution

The fourth proportional to 583.63, 874.93 and 309.91 is: 464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.63 : 874.93 = 309.91 : x
  2. Step 2: Convert to fraction form
    583.63/874.93 = 309.91/x
  3. Step 3: Cross multiply
    583.63x = 874.93 × 309.91
  4. Step 4: Simplify right side
    583.63x = 271,149.56
  5. Step 5: Solve for x
    x = 271,149.56/583.63
  6. Step 6: Final answer
    x = 464.59

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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.