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Finding the Fourth Proportional to 848.03, 1,272.11 and 482.45

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Solution

The fourth proportional to 848.03, 1,272.11 and 482.45 is: 723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.03 : 1,272.11 = 482.45 : x
  2. Step 2: Convert to fraction form
    848.03/1,272.11 = 482.45/x
  3. Step 3: Cross multiply
    848.03x = 1,272.11 × 482.45
  4. Step 4: Simplify right side
    848.03x = 613,720.70
  5. Step 5: Solve for x
    x = 613,720.70/848.03
  6. Step 6: Final answer
    x = 723.71

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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.