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Finding the Fourth Proportional to 556,579.51, 768,081.20 and 301,930.70

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Solution

The fourth proportional to 556,579.51, 768,081.20 and 301,930.70 is: 416,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,579.51 : 768,081.20 = 301,930.70 : x
  2. Step 2: Convert to fraction form
    556,579.51/768,081.20 = 301,930.70/x
  3. Step 3: Cross multiply
    556,579.51x = 768,081.20 × 301,930.70
  4. Step 4: Simplify right side
    556,579.51x = 231,907,294,167.57
  5. Step 5: Solve for x
    x = 231,907,294,167.57/556,579.51
  6. Step 6: Final answer
    x = 416,665.17

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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.