Finding the Fourth Proportional to 939,490.80, 1,296,833.49 and 557,517.48
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Solution
The fourth proportional to 939,490.80, 1,296,833.49 and 557,517.48 is: 769,573.62
Step by Step Solution
- Step 1: Write the proportion equation
939,490.80 : 1,296,833.49 = 557,517.48 : x - Step 2: Convert to fraction form
939,490.80/1,296,833.49 = 557,517.48/x - Step 3: Cross multiply
939,490.80x = 1,296,833.49 × 557,517.48 - Step 4: Simplify right side
939,490.80x = 723,007,339,324.41 - Step 5: Solve for x
x = 723,007,339,324.41/939,490.80 - Step 6: Final answer
x = 769,573.62
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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.