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Finding the Fourth Proportional to 1,270.17, 1,903.46 and 602.36

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Solution

The fourth proportional to 1,270.17, 1,903.46 and 602.36 is: 902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.17 : 1,903.46 = 602.36 : x
  2. Step 2: Convert to fraction form
    1,270.17/1,903.46 = 602.36/x
  3. Step 3: Cross multiply
    1,270.17x = 1,903.46 × 602.36
  4. Step 4: Simplify right side
    1,270.17x = 1,146,568.17
  5. Step 5: Solve for x
    x = 1,146,568.17/1,270.17
  6. Step 6: Final answer
    x = 902.69

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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.