Home / 449,262.88-619,982.40-258,313.60

Finding the Fourth Proportional to 449,262.88, 619,982.40 and 258,313.60

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Solution

The fourth proportional to 449,262.88, 619,982.40 and 258,313.60 is: 356,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,262.88 : 619,982.40 = 258,313.60 : x
  2. Step 2: Convert to fraction form
    449,262.88/619,982.40 = 258,313.60/x
  3. Step 3: Cross multiply
    449,262.88x = 619,982.40 × 258,313.60
  4. Step 4: Simplify right side
    449,262.88x = 160,149,885,680.64
  5. Step 5: Solve for x
    x = 160,149,885,680.64/449,262.88
  6. Step 6: Final answer
    x = 356,472.55

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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.