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Finding the Fourth Proportional to 438,429.44, 657,592.68 and 122,911.76

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Solution

The fourth proportional to 438,429.44, 657,592.68 and 122,911.76 is: 184,353.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,429.44 : 657,592.68 = 122,911.76 : x
  2. Step 2: Convert to fraction form
    438,429.44/657,592.68 = 122,911.76/x
  3. Step 3: Cross multiply
    438,429.44x = 657,592.68 × 122,911.76
  4. Step 4: Simplify right side
    438,429.44x = 80,825,873,661.92
  5. Step 5: Solve for x
    x = 80,825,873,661.92/438,429.44
  6. Step 6: Final answer
    x = 184,353.21

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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.