Finding the Fourth Proportional to 547,381.18, 755,387.16 and 305,663.02
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Solution
The fourth proportional to 547,381.18, 755,387.16 and 305,663.02 is: 421,815.60
Step by Step Solution
- Step 1: Write the proportion equation
547,381.18 : 755,387.16 = 305,663.02 : x - Step 2: Convert to fraction form
547,381.18/755,387.16 = 305,663.02/x - Step 3: Cross multiply
547,381.18x = 755,387.16 × 305,663.02 - Step 4: Simplify right side
547,381.18x = 230,893,920,594.82 - Step 5: Solve for x
x = 230,893,920,594.82/547,381.18 - Step 6: Final answer
x = 421,815.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.