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Finding the Fourth Proportional to 480,563.45, 663,161.31 and 276,586.05

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Solution

The fourth proportional to 480,563.45, 663,161.31 and 276,586.05 is: 381,679.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,563.45 : 663,161.31 = 276,586.05 : x
  2. Step 2: Convert to fraction form
    480,563.45/663,161.31 = 276,586.05/x
  3. Step 3: Cross multiply
    480,563.45x = 663,161.31 × 276,586.05
  4. Step 4: Simplify right side
    480,563.45x = 183,421,167,245.73
  5. Step 5: Solve for x
    x = 183,421,167,245.73/480,563.45
  6. Step 6: Final answer
    x = 381,679.40

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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.