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Finding the Fourth Proportional to 490,083.90, 735,147.45 and 276,848.70

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Solution

The fourth proportional to 490,083.90, 735,147.45 and 276,848.70 is: 415,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,083.90 : 735,147.45 = 276,848.70 : x
  2. Step 2: Convert to fraction form
    490,083.90/735,147.45 = 276,848.70/x
  3. Step 3: Cross multiply
    490,083.90x = 735,147.45 × 276,848.70
  4. Step 4: Simplify right side
    490,083.90x = 203,524,615,840.82
  5. Step 5: Solve for x
    x = 203,524,615,840.82/490,083.90
  6. Step 6: Final answer
    x = 415,285.25

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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.