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Finding the Fourth Proportional to 848.93, 1,171.62 and 517.55

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Solution

The fourth proportional to 848.93, 1,171.62 and 517.55 is: 714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.93 : 1,171.62 = 517.55 : x
  2. Step 2: Convert to fraction form
    848.93/1,171.62 = 517.55/x
  3. Step 3: Cross multiply
    848.93x = 1,171.62 × 517.55
  4. Step 4: Simplify right side
    848.93x = 606,366.07
  5. Step 5: Solve for x
    x = 606,366.07/848.93
  6. Step 6: Final answer
    x = 714.28

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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.