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Finding the Fourth Proportional to 954.64, 1,429.26 and 607.12

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Solution

The fourth proportional to 954.64, 1,429.26 and 607.12 is: 908.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.64 : 1,429.26 = 607.12 : x
  2. Step 2: Convert to fraction form
    954.64/1,429.26 = 607.12/x
  3. Step 3: Cross multiply
    954.64x = 1,429.26 × 607.12
  4. Step 4: Simplify right side
    954.64x = 867,725.18
  5. Step 5: Solve for x
    x = 867,725.18/954.64
  6. Step 6: Final answer
    x = 908.96

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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.