Home / 449,265.88-619,986.54-258,316.60

Finding the Fourth Proportional to 449,265.88, 619,986.54 and 258,316.60

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Solution

The fourth proportional to 449,265.88, 619,986.54 and 258,316.60 is: 356,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,265.88 : 619,986.54 = 258,316.60 : x
  2. Step 2: Convert to fraction form
    449,265.88/619,986.54 = 258,316.60/x
  3. Step 3: Cross multiply
    449,265.88x = 619,986.54 × 258,316.60
  4. Step 4: Simplify right side
    449,265.88x = 160,152,815,058.56
  5. Step 5: Solve for x
    x = 160,152,815,058.56/449,265.88
  6. Step 6: Final answer
    x = 356,476.69

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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.