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Finding the Fourth Proportional to 543,114.70, 749,473.02 and 301,395.15

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Solution

The fourth proportional to 543,114.70, 749,473.02 and 301,395.15 is: 415,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,114.70 : 749,473.02 = 301,395.15 : x
  2. Step 2: Convert to fraction form
    543,114.70/749,473.02 = 301,395.15/x
  3. Step 3: Cross multiply
    543,114.70x = 749,473.02 × 301,395.15
  4. Step 4: Simplify right side
    543,114.70x = 225,887,531,776.88
  5. Step 5: Solve for x
    x = 225,887,531,776.88/543,114.70
  6. Step 6: Final answer
    x = 415,911.29

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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.