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Finding the Fourth Proportional to 449,601.24, 620,442.32 and 245,647.76

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Solution

The fourth proportional to 449,601.24, 620,442.32 and 245,647.76 is: 338,989.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,601.24 : 620,442.32 = 245,647.76 : x
  2. Step 2: Convert to fraction form
    449,601.24/620,442.32 = 245,647.76/x
  3. Step 3: Cross multiply
    449,601.24x = 620,442.32 × 245,647.76
  4. Step 4: Simplify right side
    449,601.24x = 152,410,266,117.20
  5. Step 5: Solve for x
    x = 152,410,266,117.20/449,601.24
  6. Step 6: Final answer
    x = 338,989.87

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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.