Finding the Fourth Proportional to 860,069.73, 1,290,108.73 and 261,036.09
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Solution
The fourth proportional to 860,069.73, 1,290,108.73 and 261,036.09 is: 391,555.39
Step by Step Solution
- Step 1: Write the proportion equation
860,069.73 : 1,290,108.73 = 261,036.09 : x - Step 2: Convert to fraction form
860,069.73/1,290,108.73 = 261,036.09/x - Step 3: Cross multiply
860,069.73x = 1,290,108.73 × 261,036.09 - Step 4: Simplify right side
860,069.73x = 336,764,937,901.48 - Step 5: Solve for x
x = 336,764,937,901.48/860,069.73 - Step 6: Final answer
x = 391,555.39
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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.