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Finding the Fourth Proportional to 556,579.75, 768,081.54 and 301,930.94

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Solution

The fourth proportional to 556,579.75, 768,081.54 and 301,930.94 is: 416,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,579.75 : 768,081.54 = 301,930.94 : x
  2. Step 2: Convert to fraction form
    556,579.75/768,081.54 = 301,930.94/x
  3. Step 3: Cross multiply
    556,579.75x = 768,081.54 × 301,930.94
  4. Step 4: Simplify right side
    556,579.75x = 231,907,580,614.02
  5. Step 5: Solve for x
    x = 231,907,580,614.02/556,579.75
  6. Step 6: Final answer
    x = 416,665.50

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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.