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Finding the Fourth Proportional to 583.08, 803.49 and 495.60

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Solution

The fourth proportional to 583.08, 803.49 and 495.60 is: 682.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.08 : 803.49 = 495.60 : x
  2. Step 2: Convert to fraction form
    583.08/803.49 = 495.60/x
  3. Step 3: Cross multiply
    583.08x = 803.49 × 495.60
  4. Step 4: Simplify right side
    583.08x = 398,209.64
  5. Step 5: Solve for x
    x = 398,209.64/583.08
  6. Step 6: Final answer
    x = 682.94

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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.