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Finding the Fourth Proportional to 995.02, 1,370.99 and 714.35

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Solution

The fourth proportional to 995.02, 1,370.99 and 714.35 is: 984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    995.02 : 1,370.99 = 714.35 : x
  2. Step 2: Convert to fraction form
    995.02/1,370.99 = 714.35/x
  3. Step 3: Cross multiply
    995.02x = 1,370.99 × 714.35
  4. Step 4: Simplify right side
    995.02x = 979,371.92
  5. Step 5: Solve for x
    x = 979,371.92/995.02
  6. Step 6: Final answer
    x = 984.28

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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.