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Finding the Fourth Proportional to 1,238,379, 1,855,450.91 and 968,402.90

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Solution

The fourth proportional to 1,238,379, 1,855,450.91 and 968,402.90 is: 1,450,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,379 : 1,855,450.91 = 968,402.90 : x
  2. Step 2: Convert to fraction form
    1,238,379/1,855,450.91 = 968,402.90/x
  3. Step 3: Cross multiply
    1,238,379x = 1,855,450.91 × 968,402.90
  4. Step 4: Simplify right side
    1,238,379x = 1,796,824,027,932.37
  5. Step 5: Solve for x
    x = 1,796,824,027,932.37/1,238,379
  6. Step 6: Final answer
    x = 1,450,948.40

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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.