Finding the Fourth Proportional to 1,557,442.72, 2,149,266.88 and 869,107.26
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Solution
The fourth proportional to 1,557,442.72, 2,149,266.88 and 869,107.26 is: 1,199,365.75
Step by Step Solution
- Step 1: Write the proportion equation
1,557,442.72 : 2,149,266.88 = 869,107.26 : x - Step 2: Convert to fraction form
1,557,442.72/2,149,266.88 = 869,107.26/x - Step 3: Cross multiply
1,557,442.72x = 2,149,266.88 × 869,107.26 - Step 4: Simplify right side
1,557,442.72x = 1,867,943,449,085.55 - Step 5: Solve for x
x = 1,867,943,449,085.55/1,557,442.72 - Step 6: Final answer
x = 1,199,365.75
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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.