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Finding the Fourth Proportional to 554,183.96, 831,017.58 and 287,873

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Solution

The fourth proportional to 554,183.96, 831,017.58 and 287,873 is: 431,675.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,183.96 : 831,017.58 = 287,873 : x
  2. Step 2: Convert to fraction form
    554,183.96/831,017.58 = 287,873/x
  3. Step 3: Cross multiply
    554,183.96x = 831,017.58 × 287,873
  4. Step 4: Simplify right side
    554,183.96x = 239,227,523,807.34
  5. Step 5: Solve for x
    x = 239,227,523,807.34/554,183.96
  6. Step 6: Final answer
    x = 431,675.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.