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Finding the Fourth Proportional to 383,763.06, 526,775.09 and 340,372.98

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Solution

The fourth proportional to 383,763.06, 526,775.09 and 340,372.98 is: 467,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,763.06 : 526,775.09 = 340,372.98 : x
  2. Step 2: Convert to fraction form
    383,763.06/526,775.09 = 340,372.98/x
  3. Step 3: Cross multiply
    383,763.06x = 526,775.09 × 340,372.98
  4. Step 4: Simplify right side
    383,763.06x = 179,300,005,471.20
  5. Step 5: Solve for x
    x = 179,300,005,471.20/383,763.06
  6. Step 6: Final answer
    x = 467,215.38

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.