Finding the Fourth Proportional to 818,074.08, 1,227,671.62 and 285,595.09
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Solution
The fourth proportional to 818,074.08, 1,227,671.62 and 285,595.09 is: 428,588.30
Step by Step Solution
- Step 1: Write the proportion equation
818,074.08 : 1,227,671.62 = 285,595.09 : x - Step 2: Convert to fraction form
818,074.08/1,227,671.62 = 285,595.09/x - Step 3: Cross multiply
818,074.08x = 1,227,671.62 × 285,595.09 - Step 4: Simplify right side
818,074.08x = 350,616,983,021.18 - Step 5: Solve for x
x = 350,616,983,021.18/818,074.08 - Step 6: Final answer
x = 428,588.30
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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.