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Finding the Fourth Proportional to 723,773.72, 998,813.76 and 401,504.96

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Solution

The fourth proportional to 723,773.72, 998,813.76 and 401,504.96 is: 554,080.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,773.72 : 998,813.76 = 401,504.96 : x
  2. Step 2: Convert to fraction form
    723,773.72/998,813.76 = 401,504.96/x
  3. Step 3: Cross multiply
    723,773.72x = 998,813.76 × 401,504.96
  4. Step 4: Simplify right side
    723,773.72x = 401,028,678,756.25
  5. Step 5: Solve for x
    x = 401,028,678,756.25/723,773.72
  6. Step 6: Final answer
    x = 554,080.19

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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.