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Finding the Fourth Proportional to 447,958.32, 618,137.66 and 275,848.72

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Solution

The fourth proportional to 447,958.32, 618,137.66 and 275,848.72 is: 380,643.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,958.32 : 618,137.66 = 275,848.72 : x
  2. Step 2: Convert to fraction form
    447,958.32/618,137.66 = 275,848.72/x
  3. Step 3: Cross multiply
    447,958.32x = 618,137.66 × 275,848.72
  4. Step 4: Simplify right side
    447,958.32x = 170,512,482,294.80
  5. Step 5: Solve for x
    x = 170,512,482,294.80/447,958.32
  6. Step 6: Final answer
    x = 380,643.63

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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.