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Finding the Fourth Proportional to 637.21, 954.98 and 554.59

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Solution

The fourth proportional to 637.21, 954.98 and 554.59 is: 831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.21 : 954.98 = 554.59 : x
  2. Step 2: Convert to fraction form
    637.21/954.98 = 554.59/x
  3. Step 3: Cross multiply
    637.21x = 954.98 × 554.59
  4. Step 4: Simplify right side
    637.21x = 529,622.36
  5. Step 5: Solve for x
    x = 529,622.36/637.21
  6. Step 6: Final answer
    x = 831.16

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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.