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Finding the Fourth Proportional to 421,898.44, 632,767.02 and 126,410.44

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Solution

The fourth proportional to 421,898.44, 632,767.02 and 126,410.44 is: 189,591.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,898.44 : 632,767.02 = 126,410.44 : x
  2. Step 2: Convert to fraction form
    421,898.44/632,767.02 = 126,410.44/x
  3. Step 3: Cross multiply
    421,898.44x = 632,767.02 × 126,410.44
  4. Step 4: Simplify right side
    421,898.44x = 79,988,357,415.69
  5. Step 5: Solve for x
    x = 79,988,357,415.69/421,898.44
  6. Step 6: Final answer
    x = 189,591.50

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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.