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Finding the Fourth Proportional to 723,682.45, 998,801.36 and 401,496.35

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Solution

The fourth proportional to 723,682.45, 998,801.36 and 401,496.35 is: 554,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,682.45 : 998,801.36 = 401,496.35 : x
  2. Step 2: Convert to fraction form
    723,682.45/998,801.36 = 401,496.35/x
  3. Step 3: Cross multiply
    723,682.45x = 998,801.36 × 401,496.35
  4. Step 4: Simplify right side
    723,682.45x = 401,015,095,910.55
  5. Step 5: Solve for x
    x = 401,015,095,910.55/723,682.45
  6. Step 6: Final answer
    x = 554,131.30

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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.