Finding the Fourth Proportional to 860,218.62, 1,290,239.37 and 261,155.58
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Solution
The fourth proportional to 860,218.62, 1,290,239.37 and 261,155.58 is: 391,706.48
Step by Step Solution
- Step 1: Write the proportion equation
860,218.62 : 1,290,239.37 = 261,155.58 : x - Step 2: Convert to fraction form
860,218.62/1,290,239.37 = 261,155.58/x - Step 3: Cross multiply
860,218.62x = 1,290,239.37 × 261,155.58 - Step 4: Simplify right side
860,218.62x = 336,953,211,011.19 - Step 5: Solve for x
x = 336,953,211,011.19/860,218.62 - Step 6: Final answer
x = 391,706.48
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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.