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Finding the Fourth Proportional to 723,991.98, 999,108.92 and 401,704.38

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Solution

The fourth proportional to 723,991.98, 999,108.92 and 401,704.38 is: 554,352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,991.98 : 999,108.92 = 401,704.38 : x
  2. Step 2: Convert to fraction form
    723,991.98/999,108.92 = 401,704.38/x
  3. Step 3: Cross multiply
    723,991.98x = 999,108.92 × 401,704.38
  4. Step 4: Simplify right side
    723,991.98x = 401,346,424,265.53
  5. Step 5: Solve for x
    x = 401,346,424,265.53/723,991.98
  6. Step 6: Final answer
    x = 554,352.03

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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.