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Finding the Fourth Proportional to 1,266,845.04, 1,747,583.56 and 783,255.60

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Solution

The fourth proportional to 1,266,845.04, 1,747,583.56 and 783,255.60 is: 1,080,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,845.04 : 1,747,583.56 = 783,255.60 : x
  2. Step 2: Convert to fraction form
    1,266,845.04/1,747,583.56 = 783,255.60/x
  3. Step 3: Cross multiply
    1,266,845.04x = 1,747,583.56 × 783,255.60
  4. Step 4: Simplify right side
    1,266,845.04x = 1,368,804,609,837.94
  5. Step 5: Solve for x
    x = 1,368,804,609,837.94/1,266,845.04
  6. Step 6: Final answer
    x = 1,080,483.06

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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.