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Finding the Fourth Proportional to 664,408.44, 916,870.86 and 362,604.60

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Solution

The fourth proportional to 664,408.44, 916,870.86 and 362,604.60 is: 500,387.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,408.44 : 916,870.86 = 362,604.60 : x
  2. Step 2: Convert to fraction form
    664,408.44/916,870.86 = 362,604.60/x
  3. Step 3: Cross multiply
    664,408.44x = 916,870.86 × 362,604.60
  4. Step 4: Simplify right side
    664,408.44x = 332,461,591,441.96
  5. Step 5: Solve for x
    x = 332,461,591,441.96/664,408.44
  6. Step 6: Final answer
    x = 500,387.37

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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.