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Finding the Fourth Proportional to 954.54, 1,434.21 and 608.03

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Solution

The fourth proportional to 954.54, 1,434.21 and 608.03 is: 913.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.54 : 1,434.21 = 608.03 : x
  2. Step 2: Convert to fraction form
    954.54/1,434.21 = 608.03/x
  3. Step 3: Cross multiply
    954.54x = 1,434.21 × 608.03
  4. Step 4: Simplify right side
    954.54x = 872,042.71
  5. Step 5: Solve for x
    x = 872,042.71/954.54
  6. Step 6: Final answer
    x = 913.57

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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.