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Finding the Fourth Proportional to 543,020.44, 749,359.72 and 298,007.32

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Solution

The fourth proportional to 543,020.44, 749,359.72 and 298,007.32 is: 411,245.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,020.44 : 749,359.72 = 298,007.32 : x
  2. Step 2: Convert to fraction form
    543,020.44/749,359.72 = 298,007.32/x
  3. Step 3: Cross multiply
    543,020.44x = 749,359.72 × 298,007.32
  4. Step 4: Simplify right side
    543,020.44x = 223,314,681,873.15
  5. Step 5: Solve for x
    x = 223,314,681,873.15/543,020.44
  6. Step 6: Final answer
    x = 411,245.44

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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.