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Finding the Fourth Proportional to 941.49, 1,411.38 and 508.14

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Solution

The fourth proportional to 941.49, 1,411.38 and 508.14 is: 761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.49 : 1,411.38 = 508.14 : x
  2. Step 2: Convert to fraction form
    941.49/1,411.38 = 508.14/x
  3. Step 3: Cross multiply
    941.49x = 1,411.38 × 508.14
  4. Step 4: Simplify right side
    941.49x = 717,178.63
  5. Step 5: Solve for x
    x = 717,178.63/941.49
  6. Step 6: Final answer
    x = 761.75

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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.