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Finding the Fourth Proportional to 803.35, 1,203.39 and 583.84

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Solution

The fourth proportional to 803.35, 1,203.39 and 583.84 is: 874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.35 : 1,203.39 = 583.84 : x
  2. Step 2: Convert to fraction form
    803.35/1,203.39 = 583.84/x
  3. Step 3: Cross multiply
    803.35x = 1,203.39 × 583.84
  4. Step 4: Simplify right side
    803.35x = 702,587.22
  5. Step 5: Solve for x
    x = 702,587.22/803.35
  6. Step 6: Final answer
    x = 874.57

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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.