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Finding the Fourth Proportional to 832,672.80, 1,248,243.72 and 300,063.60

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Solution

The fourth proportional to 832,672.80, 1,248,243.72 and 300,063.60 is: 449,819.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,672.80 : 1,248,243.72 = 300,063.60 : x
  2. Step 2: Convert to fraction form
    832,672.80/1,248,243.72 = 300,063.60/x
  3. Step 3: Cross multiply
    832,672.80x = 1,248,243.72 × 300,063.60
  4. Step 4: Simplify right side
    832,672.80x = 374,552,504,300.59
  5. Step 5: Solve for x
    x = 374,552,504,300.59/832,672.80
  6. Step 6: Final answer
    x = 449,819.55

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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.