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Finding the Fourth Proportional to 664,456.56, 916,937.04 and 362,652.72

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Solution

The fourth proportional to 664,456.56, 916,937.04 and 362,652.72 is: 500,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,456.56 : 916,937.04 = 362,652.72 : x
  2. Step 2: Convert to fraction form
    664,456.56/916,937.04 = 362,652.72/x
  3. Step 3: Cross multiply
    664,456.56x = 916,937.04 × 362,652.72
  4. Step 4: Simplify right side
    664,456.56x = 332,529,711,624.75
  5. Step 5: Solve for x
    x = 332,529,711,624.75/664,456.56
  6. Step 6: Final answer
    x = 500,453.65

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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.