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Finding the Fourth Proportional to 449,586, 620,430.84 and 258,610.68

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Solution

The fourth proportional to 449,586, 620,430.84 and 258,610.68 is: 356,883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,586 : 620,430.84 = 258,610.68 : x
  2. Step 2: Convert to fraction form
    449,586/620,430.84 = 258,610.68/x
  3. Step 3: Cross multiply
    449,586x = 620,430.84 × 258,610.68
  4. Step 4: Simplify right side
    449,586x = 160,450,041,425.37
  5. Step 5: Solve for x
    x = 160,450,041,425.37/449,586
  6. Step 6: Final answer
    x = 356,883.98

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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.