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Finding the Fourth Proportional to 719.03, 1,078.96 and 302.52

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Solution

The fourth proportional to 719.03, 1,078.96 and 302.52 is: 453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.03 : 1,078.96 = 302.52 : x
  2. Step 2: Convert to fraction form
    719.03/1,078.96 = 302.52/x
  3. Step 3: Cross multiply
    719.03x = 1,078.96 × 302.52
  4. Step 4: Simplify right side
    719.03x = 326,406.98
  5. Step 5: Solve for x
    x = 326,406.98/719.03
  6. Step 6: Final answer
    x = 453.95

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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.