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Finding the Fourth Proportional to 848.84, 1,272.84 and 718.42

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Solution

The fourth proportional to 848.84, 1,272.84 and 718.42 is: 1,077.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.84 : 1,272.84 = 718.42 : x
  2. Step 2: Convert to fraction form
    848.84/1,272.84 = 718.42/x
  3. Step 3: Cross multiply
    848.84x = 1,272.84 × 718.42
  4. Step 4: Simplify right side
    848.84x = 914,433.71
  5. Step 5: Solve for x
    x = 914,433.71/848.84
  6. Step 6: Final answer
    x = 1,077.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.