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Finding the Fourth Proportional to 1,043.47, 1,436.70 and 793.99

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Solution

The fourth proportional to 1,043.47, 1,436.70 and 793.99 is: 1,093.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.47 : 1,436.70 = 793.99 : x
  2. Step 2: Convert to fraction form
    1,043.47/1,436.70 = 793.99/x
  3. Step 3: Cross multiply
    1,043.47x = 1,436.70 × 793.99
  4. Step 4: Simplify right side
    1,043.47x = 1,140,725.43
  5. Step 5: Solve for x
    x = 1,140,725.43/1,043.47
  6. Step 6: Final answer
    x = 1,093.20

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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.