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Finding the Fourth Proportional to 671,843.20, 1,007,764.80 and 297,866.20

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Solution

The fourth proportional to 671,843.20, 1,007,764.80 and 297,866.20 is: 446,799.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,843.20 : 1,007,764.80 = 297,866.20 : x
  2. Step 2: Convert to fraction form
    671,843.20/1,007,764.80 = 297,866.20/x
  3. Step 3: Cross multiply
    671,843.20x = 1,007,764.80 × 297,866.20
  4. Step 4: Simplify right side
    671,843.20x = 300,179,071,469.76
  5. Step 5: Solve for x
    x = 300,179,071,469.76/671,843.20
  6. Step 6: Final answer
    x = 446,799.30

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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.