Finding the Fourth Proportional to 912,416.88, 1,368,537.36 and 281,161.20
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Solution
The fourth proportional to 912,416.88, 1,368,537.36 and 281,161.20 is: 421,714.70
Step by Step Solution
- Step 1: Write the proportion equation
912,416.88 : 1,368,537.36 = 281,161.20 : x - Step 2: Convert to fraction form
912,416.88/1,368,537.36 = 281,161.20/x - Step 3: Cross multiply
912,416.88x = 1,368,537.36 × 281,161.20 - Step 4: Simplify right side
912,416.88x = 384,779,606,382.43 - Step 5: Solve for x
x = 384,779,606,382.43/912,416.88 - Step 6: Final answer
x = 421,714.70
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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.