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Finding the Fourth Proportional to 911,576.37, 1,366,624.62 and 379,495.67

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Solution

The fourth proportional to 911,576.37, 1,366,624.62 and 379,495.67 is: 568,935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,576.37 : 1,366,624.62 = 379,495.67 : x
  2. Step 2: Convert to fraction form
    911,576.37/1,366,624.62 = 379,495.67/x
  3. Step 3: Cross multiply
    911,576.37x = 1,366,624.62 × 379,495.67
  4. Step 4: Simplify right side
    911,576.37x = 518,628,129,221.96
  5. Step 5: Solve for x
    x = 518,628,129,221.96/911,576.37
  6. Step 6: Final answer
    x = 568,935.47

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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.