Finding the Fourth Proportional to 860,259.94, 1,290,306.47 and 261,226.28
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Solution
The fourth proportional to 860,259.94, 1,290,306.47 and 261,226.28 is: 391,814.08
Step by Step Solution
- Step 1: Write the proportion equation
860,259.94 : 1,290,306.47 = 261,226.28 : x - Step 2: Convert to fraction form
860,259.94/1,290,306.47 = 261,226.28/x - Step 3: Cross multiply
860,259.94x = 1,290,306.47 × 261,226.28 - Step 4: Simplify right side
860,259.94x = 337,061,959,218.03 - Step 5: Solve for x
x = 337,061,959,218.03/860,259.94 - Step 6: Final answer
x = 391,814.08
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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.