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Finding the Fourth Proportional to 448,488.89, 619,064.64 and 267,257.67

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Solution

The fourth proportional to 448,488.89, 619,064.64 and 267,257.67 is: 368,904.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,488.89 : 619,064.64 = 267,257.67 : x
  2. Step 2: Convert to fraction form
    448,488.89/619,064.64 = 267,257.67/x
  3. Step 3: Cross multiply
    448,488.89x = 619,064.64 × 267,257.67
  4. Step 4: Simplify right side
    448,488.89x = 165,449,770,944.30
  5. Step 5: Solve for x
    x = 165,449,770,944.30/448,488.89
  6. Step 6: Final answer
    x = 368,904.95

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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.