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Finding the Fourth Proportional to 894.49, 1,339.44 and 529.54

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Solution

The fourth proportional to 894.49, 1,339.44 and 529.54 is: 792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.49 : 1,339.44 = 529.54 : x
  2. Step 2: Convert to fraction form
    894.49/1,339.44 = 529.54/x
  3. Step 3: Cross multiply
    894.49x = 1,339.44 × 529.54
  4. Step 4: Simplify right side
    894.49x = 709,283.71
  5. Step 5: Solve for x
    x = 709,283.71/894.49
  6. Step 6: Final answer
    x = 792.95

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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.