Finding the Fourth Proportional to 768,889.98, 1,153,427.31 and 319,914.68
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Solution
The fourth proportional to 768,889.98, 1,153,427.31 and 319,914.68 is: 479,910.43
Step by Step Solution
- Step 1: Write the proportion equation
768,889.98 : 1,153,427.31 = 319,914.68 : x - Step 2: Convert to fraction form
768,889.98/1,153,427.31 = 319,914.68/x - Step 3: Cross multiply
768,889.98x = 1,153,427.31 × 319,914.68 - Step 4: Simplify right side
768,889.98x = 368,998,323,014.77 - Step 5: Solve for x
x = 368,998,323,014.77/768,889.98 - Step 6: Final answer
x = 479,910.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.