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Finding the Fourth Proportional to 671,384.65, 926,531.69 and 365,481.40

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Solution

The fourth proportional to 671,384.65, 926,531.69 and 365,481.40 is: 504,375.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,384.65 : 926,531.69 = 365,481.40 : x
  2. Step 2: Convert to fraction form
    671,384.65/926,531.69 = 365,481.40/x
  3. Step 3: Cross multiply
    671,384.65x = 926,531.69 × 365,481.40
  4. Step 4: Simplify right side
    671,384.65x = 338,630,099,205.57
  5. Step 5: Solve for x
    x = 338,630,099,205.57/671,384.65
  6. Step 6: Final answer
    x = 504,375.69

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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.