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Finding the Fourth Proportional to 511,951.90, 768,511.05 and 301,708.30

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Solution

The fourth proportional to 511,951.90, 768,511.05 and 301,708.30 is: 452,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,951.90 : 768,511.05 = 301,708.30 : x
  2. Step 2: Convert to fraction form
    511,951.90/768,511.05 = 301,708.30/x
  3. Step 3: Cross multiply
    511,951.90x = 768,511.05 × 301,708.30
  4. Step 4: Simplify right side
    511,951.90x = 231,866,162,426.72
  5. Step 5: Solve for x
    x = 231,866,162,426.72/511,951.90
  6. Step 6: Final answer
    x = 452,906.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.