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Finding the Fourth Proportional to 543,245.74, 749,668.44 and 301,531.21

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Solution

The fourth proportional to 543,245.74, 749,668.44 and 301,531.21 is: 416,107.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,245.74 : 749,668.44 = 301,531.21 : x
  2. Step 2: Convert to fraction form
    543,245.74/749,668.44 = 301,531.21/x
  3. Step 3: Cross multiply
    543,245.74x = 749,668.44 × 301,531.21
  4. Step 4: Simplify right side
    543,245.74x = 226,048,431,812.01
  5. Step 5: Solve for x
    x = 226,048,431,812.01/543,245.74
  6. Step 6: Final answer
    x = 416,107.14

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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.