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Finding the Fourth Proportional to 526,408.64, 726,440.64 and 300,051.44

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Solution

The fourth proportional to 526,408.64, 726,440.64 and 300,051.44 is: 414,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,408.64 : 726,440.64 = 300,051.44 : x
  2. Step 2: Convert to fraction form
    526,408.64/726,440.64 = 300,051.44/x
  3. Step 3: Cross multiply
    526,408.64x = 726,440.64 × 300,051.44
  4. Step 4: Simplify right side
    526,408.64x = 217,969,560,106.52
  5. Step 5: Solve for x
    x = 217,969,560,106.52/526,408.64
  6. Step 6: Final answer
    x = 414,069.12

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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.