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Finding the Fourth Proportional to 543,107.13, 749,495.99 and 301,405.35

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Solution

The fourth proportional to 543,107.13, 749,495.99 and 301,405.35 is: 415,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,107.13 : 749,495.99 = 301,405.35 : x
  2. Step 2: Convert to fraction form
    543,107.13/749,495.99 = 301,405.35/x
  3. Step 3: Cross multiply
    543,107.13x = 749,495.99 × 301,405.35
  4. Step 4: Simplify right side
    543,107.13x = 225,902,103,058.27
  5. Step 5: Solve for x
    x = 225,902,103,058.27/543,107.13
  6. Step 6: Final answer
    x = 415,943.91

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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.