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Finding the Fourth Proportional to 644,883.72, 967,322.70 and 245,430.60

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Solution

The fourth proportional to 644,883.72, 967,322.70 and 245,430.60 is: 368,144.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,883.72 : 967,322.70 = 245,430.60 : x
  2. Step 2: Convert to fraction form
    644,883.72/967,322.70 = 245,430.60/x
  3. Step 3: Cross multiply
    644,883.72x = 967,322.70 × 245,430.60
  4. Step 4: Simplify right side
    644,883.72x = 237,410,590,654.62
  5. Step 5: Solve for x
    x = 237,410,590,654.62/644,883.72
  6. Step 6: Final answer
    x = 368,144.80

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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.