Finding the Fourth Proportional to 939,460.18, 1,296,791.34 and 557,486.98
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Solution
The fourth proportional to 939,460.18, 1,296,791.34 and 557,486.98 is: 769,531.59
Step by Step Solution
- Step 1: Write the proportion equation
939,460.18 : 1,296,791.34 = 557,486.98 : x - Step 2: Convert to fraction form
939,460.18/1,296,791.34 = 557,486.98/x - Step 3: Cross multiply
939,460.18x = 1,296,791.34 × 557,486.98 - Step 4: Simplify right side
939,460.18x = 722,944,287,826.75 - Step 5: Solve for x
x = 722,944,287,826.75/939,460.18 - Step 6: Final answer
x = 769,531.59
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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.