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Finding the Fourth Proportional to 1,283,234.40, 1,920,704.40 and 1,001,224.80

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Solution

The fourth proportional to 1,283,234.40, 1,920,704.40 and 1,001,224.80 is: 1,498,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,234.40 : 1,920,704.40 = 1,001,224.80 : x
  2. Step 2: Convert to fraction form
    1,283,234.40/1,920,704.40 = 1,001,224.80/x
  3. Step 3: Cross multiply
    1,283,234.40x = 1,920,704.40 × 1,001,224.80
  4. Step 4: Simplify right side
    1,283,234.40x = 1,923,056,878,749.12
  5. Step 5: Solve for x
    x = 1,923,056,878,749.12/1,283,234.40
  6. Step 6: Final answer
    x = 1,498,601.41

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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.