Finding the Fourth Proportional to 448,731.18, 617,989.26 and 438,933.42
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Solution
The fourth proportional to 448,731.18, 617,989.26 and 438,933.42 is: 604,495.86
Step by Step Solution
- Step 1: Write the proportion equation
448,731.18 : 617,989.26 = 438,933.42 : x - Step 2: Convert to fraction form
448,731.18/617,989.26 = 438,933.42/x - Step 3: Cross multiply
448,731.18x = 617,989.26 × 438,933.42 - Step 4: Simplify right side
448,731.18x = 271,256,139,415.07 - Step 5: Solve for x
x = 271,256,139,415.07/448,731.18 - Step 6: Final answer
x = 604,495.86
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.