Finding the Fourth Proportional to 535,879.84, 739,486.63 and 318,097.70
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Solution
The fourth proportional to 535,879.84, 739,486.63 and 318,097.70 is: 438,958.47
Step by Step Solution
- Step 1: Write the proportion equation
535,879.84 : 739,486.63 = 318,097.70 : x - Step 2: Convert to fraction form
535,879.84/739,486.63 = 318,097.70/x - Step 3: Cross multiply
535,879.84x = 739,486.63 × 318,097.70 - Step 4: Simplify right side
535,879.84x = 235,228,996,183.75 - Step 5: Solve for x
x = 235,228,996,183.75/535,879.84 - Step 6: Final answer
x = 438,958.47
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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.