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Finding the Fourth Proportional to 946.41, 1,417.80 and 534.30

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Solution

The fourth proportional to 946.41, 1,417.80 and 534.30 is: 800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.41 : 1,417.80 = 534.30 : x
  2. Step 2: Convert to fraction form
    946.41/1,417.80 = 534.30/x
  3. Step 3: Cross multiply
    946.41x = 1,417.80 × 534.30
  4. Step 4: Simplify right side
    946.41x = 757,530.54
  5. Step 5: Solve for x
    x = 757,530.54/946.41
  6. Step 6: Final answer
    x = 800.43

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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.