Finding the Fourth Proportional to 1,505,684.88, 2,078,010.36 and 861,165.36
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Solution
The fourth proportional to 1,505,684.88, 2,078,010.36 and 861,165.36 is: 1,188,502.70
Step by Step Solution
- Step 1: Write the proportion equation
1,505,684.88 : 2,078,010.36 = 861,165.36 : x - Step 2: Convert to fraction form
1,505,684.88/2,078,010.36 = 861,165.36/x - Step 3: Cross multiply
1,505,684.88x = 2,078,010.36 × 861,165.36 - Step 4: Simplify right side
1,505,684.88x = 1,789,510,539,753.13 - Step 5: Solve for x
x = 1,789,510,539,753.13/1,505,684.88 - Step 6: Final answer
x = 1,188,502.70
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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.