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Finding the Fourth Proportional to 1,029,896.30, 1,544,844.45 and 987,905.90

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Solution

The fourth proportional to 1,029,896.30, 1,544,844.45 and 987,905.90 is: 1,481,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,896.30 : 1,544,844.45 = 987,905.90 : x
  2. Step 2: Convert to fraction form
    1,029,896.30/1,544,844.45 = 987,905.90/x
  3. Step 3: Cross multiply
    1,029,896.30x = 1,544,844.45 × 987,905.90
  4. Step 4: Simplify right side
    1,029,896.30x = 1,526,160,946,737.26
  5. Step 5: Solve for x
    x = 1,526,160,946,737.26/1,029,896.30
  6. Step 6: Final answer
    x = 1,481,858.85

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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.