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Finding the Fourth Proportional to 615.68, 850.08 and 483.04

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Solution

The fourth proportional to 615.68, 850.08 and 483.04 is: 666.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.68 : 850.08 = 483.04 : x
  2. Step 2: Convert to fraction form
    615.68/850.08 = 483.04/x
  3. Step 3: Cross multiply
    615.68x = 850.08 × 483.04
  4. Step 4: Simplify right side
    615.68x = 410,622.64
  5. Step 5: Solve for x
    x = 410,622.64/615.68
  6. Step 6: Final answer
    x = 666.94

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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.