Finding the Fourth Proportional to 550,377.15, 758,817.36 and 356,442.18
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Solution
The fourth proportional to 550,377.15, 758,817.36 and 356,442.18 is: 491,434.85
Step by Step Solution
- Step 1: Write the proportion equation
550,377.15 : 758,817.36 = 356,442.18 : x - Step 2: Convert to fraction form
550,377.15/758,817.36 = 356,442.18/x - Step 3: Cross multiply
550,377.15x = 758,817.36 × 356,442.18 - Step 4: Simplify right side
550,377.15x = 270,474,514,020.25 - Step 5: Solve for x
x = 270,474,514,020.25/550,377.15 - Step 6: Final answer
x = 491,434.85
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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.