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Finding the Fourth Proportional to 628,469.36, 942,851.64 and 207,745.22

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Solution

The fourth proportional to 628,469.36, 942,851.64 and 207,745.22 is: 311,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,469.36 : 942,851.64 = 207,745.22 : x
  2. Step 2: Convert to fraction form
    628,469.36/942,851.64 = 207,745.22/x
  3. Step 3: Cross multiply
    628,469.36x = 942,851.64 × 207,745.22
  4. Step 4: Simplify right side
    628,469.36x = 195,872,921,379.16
  5. Step 5: Solve for x
    x = 195,872,921,379.16/628,469.36
  6. Step 6: Final answer
    x = 311,666.62

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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.