Home / 449,263.88-619,983.78-258,314.60

Finding the Fourth Proportional to 449,263.88, 619,983.78 and 258,314.60

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Solution

The fourth proportional to 449,263.88, 619,983.78 and 258,314.60 is: 356,473.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,263.88 : 619,983.78 = 258,314.60 : x
  2. Step 2: Convert to fraction form
    449,263.88/619,983.78 = 258,314.60/x
  3. Step 3: Cross multiply
    449,263.88x = 619,983.78 × 258,314.60
  4. Step 4: Simplify right side
    449,263.88x = 160,150,862,137.19
  5. Step 5: Solve for x
    x = 160,150,862,137.19/449,263.88
  6. Step 6: Final answer
    x = 356,473.93

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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.