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Finding the Fourth Proportional to 1,266,748.31, 1,748,124.99 and 757,450.69

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Solution

The fourth proportional to 1,266,748.31, 1,748,124.99 and 757,450.69 is: 1,045,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,748.31 : 1,748,124.99 = 757,450.69 : x
  2. Step 2: Convert to fraction form
    1,266,748.31/1,748,124.99 = 757,450.69/x
  3. Step 3: Cross multiply
    1,266,748.31x = 1,748,124.99 × 757,450.69
  4. Step 4: Simplify right side
    1,266,748.31x = 1,324,118,475,511.43
  5. Step 5: Solve for x
    x = 1,324,118,475,511.43/1,266,748.31
  6. Step 6: Final answer
    x = 1,045,289.31

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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.