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Finding the Fourth Proportional to 619.48, 923.50 and 607.60

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Solution

The fourth proportional to 619.48, 923.50 and 607.60 is: 905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.48 : 923.50 = 607.60 : x
  2. Step 2: Convert to fraction form
    619.48/923.50 = 607.60/x
  3. Step 3: Cross multiply
    619.48x = 923.50 × 607.60
  4. Step 4: Simplify right side
    619.48x = 561,118.60
  5. Step 5: Solve for x
    x = 561,118.60/619.48
  6. Step 6: Final answer
    x = 905.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.