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Finding the Fourth Proportional to 678,610.44, 936,441 and 372,627.27

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Solution

The fourth proportional to 678,610.44, 936,441 and 372,627.27 is: 514,202.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,610.44 : 936,441 = 372,627.27 : x
  2. Step 2: Convert to fraction form
    678,610.44/936,441 = 372,627.27/x
  3. Step 3: Cross multiply
    678,610.44x = 936,441 × 372,627.27
  4. Step 4: Simplify right side
    678,610.44x = 348,943,453,346.07
  5. Step 5: Solve for x
    x = 348,943,453,346.07/678,610.44
  6. Step 6: Final answer
    x = 514,202.90

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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.