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Finding the Fourth Proportional to 848.47, 1,273.31 and 483.97

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Solution

The fourth proportional to 848.47, 1,273.31 and 483.97 is: 726.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.47 : 1,273.31 = 483.97 : x
  2. Step 2: Convert to fraction form
    848.47/1,273.31 = 483.97/x
  3. Step 3: Cross multiply
    848.47x = 1,273.31 × 483.97
  4. Step 4: Simplify right side
    848.47x = 616,235.05
  5. Step 5: Solve for x
    x = 616,235.05/848.47
  6. Step 6: Final answer
    x = 726.29

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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.