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Finding the Fourth Proportional to 480,919, 663,698.94 and 268,951

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Solution

The fourth proportional to 480,919, 663,698.94 and 268,951 is: 371,169.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,919 : 663,698.94 = 268,951 : x
  2. Step 2: Convert to fraction form
    480,919/663,698.94 = 268,951/x
  3. Step 3: Cross multiply
    480,919x = 663,698.94 × 268,951
  4. Step 4: Simplify right side
    480,919x = 178,502,493,611.94
  5. Step 5: Solve for x
    x = 178,502,493,611.94/480,919
  6. Step 6: Final answer
    x = 371,169.56

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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.