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Finding the Fourth Proportional to 608.20, 913.03 and 583.45

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Solution

The fourth proportional to 608.20, 913.03 and 583.45 is: 875.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.20 : 913.03 = 583.45 : x
  2. Step 2: Convert to fraction form
    608.20/913.03 = 583.45/x
  3. Step 3: Cross multiply
    608.20x = 913.03 × 583.45
  4. Step 4: Simplify right side
    608.20x = 532,703.61
  5. Step 5: Solve for x
    x = 532,703.61/608.20
  6. Step 6: Final answer
    x = 875.87

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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.