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Finding the Fourth Proportional to 737.88, 1,018.07 and 476.05

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Solution

The fourth proportional to 737.88, 1,018.07 and 476.05 is: 656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.88 : 1,018.07 = 476.05 : x
  2. Step 2: Convert to fraction form
    737.88/1,018.07 = 476.05/x
  3. Step 3: Cross multiply
    737.88x = 1,018.07 × 476.05
  4. Step 4: Simplify right side
    737.88x = 484,647.30
  5. Step 5: Solve for x
    x = 484,647.30/737.88
  6. Step 6: Final answer
    x = 656.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.