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Finding the Fourth Proportional to 848.44, 1,169.94 and 615.40

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Solution

The fourth proportional to 848.44, 1,169.94 and 615.40 is: 848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    848.44 : 1,169.94 = 615.40 : x
  2. Step 2: Convert to fraction form
    848.44/1,169.94 = 615.40/x
  3. Step 3: Cross multiply
    848.44x = 1,169.94 × 615.40
  4. Step 4: Simplify right side
    848.44x = 719,981.08
  5. Step 5: Solve for x
    x = 719,981.08/848.44
  6. Step 6: Final answer
    x = 848.59

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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.