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Finding the Fourth Proportional to 894.24, 1,342.17 and 651.24

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Solution

The fourth proportional to 894.24, 1,342.17 and 651.24 is: 977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.24 : 1,342.17 = 651.24 : x
  2. Step 2: Convert to fraction form
    894.24/1,342.17 = 651.24/x
  3. Step 3: Cross multiply
    894.24x = 1,342.17 × 651.24
  4. Step 4: Simplify right side
    894.24x = 874,074.79
  5. Step 5: Solve for x
    x = 874,074.79/894.24
  6. Step 6: Final answer
    x = 977.45

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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.