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Finding the Fourth Proportional to 422,731.40, 634,097.10 and 370,243.40

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Solution

The fourth proportional to 422,731.40, 634,097.10 and 370,243.40 is: 555,365.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,731.40 : 634,097.10 = 370,243.40 : x
  2. Step 2: Convert to fraction form
    422,731.40/634,097.10 = 370,243.40/x
  3. Step 3: Cross multiply
    422,731.40x = 634,097.10 × 370,243.40
  4. Step 4: Simplify right side
    422,731.40x = 234,770,266,234.14
  5. Step 5: Solve for x
    x = 234,770,266,234.14/422,731.40
  6. Step 6: Final answer
    x = 555,365.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.