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Finding the Fourth Proportional to 1,364,978, 1,883,436.36 and 791,886.80

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Solution

The fourth proportional to 1,364,978, 1,883,436.36 and 791,886.80 is: 1,092,668.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364,978 : 1,883,436.36 = 791,886.80 : x
  2. Step 2: Convert to fraction form
    1,364,978/1,883,436.36 = 791,886.80/x
  3. Step 3: Cross multiply
    1,364,978x = 1,883,436.36 × 791,886.80
  4. Step 4: Simplify right side
    1,364,978x = 1,491,468,392,124.05
  5. Step 5: Solve for x
    x = 1,491,468,392,124.05/1,364,978
  6. Step 6: Final answer
    x = 1,092,668.45

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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.