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Finding the Fourth Proportional to 1,277,583.58, 1,916,375.28 and 330,954.25

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Solution

The fourth proportional to 1,277,583.58, 1,916,375.28 and 330,954.25 is: 496,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,583.58 : 1,916,375.28 = 330,954.25 : x
  2. Step 2: Convert to fraction form
    1,277,583.58/1,916,375.28 = 330,954.25/x
  3. Step 3: Cross multiply
    1,277,583.58x = 1,916,375.28 × 330,954.25
  4. Step 4: Simplify right side
    1,277,583.58x = 634,232,543,510.94
  5. Step 5: Solve for x
    x = 634,232,543,510.94/1,277,583.58
  6. Step 6: Final answer
    x = 496,431.35

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Why These Related Problems?

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