Finding the Fourth Proportional to 517,318.19, 714,097.70 and 388,629.94
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Solution
The fourth proportional to 517,318.19, 714,097.70 and 388,629.94 is: 536,458.52
Step by Step Solution
- Step 1: Write the proportion equation
517,318.19 : 714,097.70 = 388,629.94 : x - Step 2: Convert to fraction form
517,318.19/714,097.70 = 388,629.94/x - Step 3: Cross multiply
517,318.19x = 714,097.70 × 388,629.94 - Step 4: Simplify right side
517,318.19x = 277,519,749,124.30 - Step 5: Solve for x
x = 277,519,749,124.30/517,318.19 - Step 6: Final answer
x = 536,458.52
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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.