Finding the Fourth Proportional to 939,518.23, 1,296,531.26 and 557,859.19
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Solution
The fourth proportional to 939,518.23, 1,296,531.26 and 557,859.19 is: 769,843.37
Step by Step Solution
- Step 1: Write the proportion equation
939,518.23 : 1,296,531.26 = 557,859.19 : x - Step 2: Convert to fraction form
939,518.23/1,296,531.26 = 557,859.19/x - Step 3: Cross multiply
939,518.23x = 1,296,531.26 × 557,859.19 - Step 4: Simplify right side
939,518.23x = 723,281,872,030.62 - Step 5: Solve for x
x = 723,281,872,030.62/939,518.23 - Step 6: Final answer
x = 769,843.37
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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.