Finding the Fourth Proportional to 860,745.73, 1,291,190.87 and 261,712.08
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Solution
The fourth proportional to 860,745.73, 1,291,190.87 and 261,712.08 is: 392,590.09
Step by Step Solution
- Step 1: Write the proportion equation
860,745.73 : 1,291,190.87 = 261,712.08 : x - Step 2: Convert to fraction form
860,745.73/1,291,190.87 = 261,712.08/x - Step 3: Cross multiply
860,745.73x = 1,291,190.87 × 261,712.08 - Step 4: Simplify right side
860,745.73x = 337,920,248,182.93 - Step 5: Solve for x
x = 337,920,248,182.93/860,745.73 - Step 6: Final answer
x = 392,590.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.