Finding the Fourth Proportional to 438,601.70, 656,444.55 and 318,316.70
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Solution
The fourth proportional to 438,601.70, 656,444.55 and 318,316.70 is: 476,416.90
Step by Step Solution
- Step 1: Write the proportion equation
438,601.70 : 656,444.55 = 318,316.70 : x - Step 2: Convert to fraction form
438,601.70/656,444.55 = 318,316.70/x - Step 3: Cross multiply
438,601.70x = 656,444.55 × 318,316.70 - Step 4: Simplify right side
438,601.70x = 208,957,262,888.99 - Step 5: Solve for x
x = 208,957,262,888.99/438,601.70 - Step 6: Final answer
x = 476,416.90
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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.