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Finding the Fourth Proportional to 1,313,584.03, 1,812,745.02 and 709,972.03

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Solution

The fourth proportional to 1,313,584.03, 1,812,745.02 and 709,972.03 is: 979,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,584.03 : 1,812,745.02 = 709,972.03 : x
  2. Step 2: Convert to fraction form
    1,313,584.03/1,812,745.02 = 709,972.03/x
  3. Step 3: Cross multiply
    1,313,584.03x = 1,812,745.02 × 709,972.03
  4. Step 4: Simplify right side
    1,313,584.03x = 1,286,998,261,721.79
  5. Step 5: Solve for x
    x = 1,286,998,261,721.79/1,313,584.03
  6. Step 6: Final answer
    x = 979,760.89

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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.