Home / 1,318,843.05-1,977,987.75-371,992.35

Finding the Fourth Proportional to 1,318,843.05, 1,977,987.75 and 371,992.35

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Solution

The fourth proportional to 1,318,843.05, 1,977,987.75 and 371,992.35 is: 557,910.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,843.05 : 1,977,987.75 = 371,992.35 : x
  2. Step 2: Convert to fraction form
    1,318,843.05/1,977,987.75 = 371,992.35/x
  3. Step 3: Cross multiply
    1,318,843.05x = 1,977,987.75 × 371,992.35
  4. Step 4: Simplify right side
    1,318,843.05x = 735,796,311,393.71
  5. Step 5: Solve for x
    x = 735,796,311,393.71/1,318,843.05
  6. Step 6: Final answer
    x = 557,910.44

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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.