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Finding the Fourth Proportional to 723,564.67, 998,494.09 and 401,304.75

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Solution

The fourth proportional to 723,564.67, 998,494.09 and 401,304.75 is: 553,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,564.67 : 998,494.09 = 401,304.75 : x
  2. Step 2: Convert to fraction form
    723,564.67/998,494.09 = 401,304.75/x
  3. Step 3: Cross multiply
    723,564.67x = 998,494.09 × 401,304.75
  4. Step 4: Simplify right side
    723,564.67x = 400,700,421,163.93
  5. Step 5: Solve for x
    x = 400,700,421,163.93/723,564.67
  6. Step 6: Final answer
    x = 553,786.60

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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.