Finding the Fourth Proportional to 458,497.63, 686,137.44 and 368,318.75
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Solution
The fourth proportional to 458,497.63, 686,137.44 and 368,318.75 is: 551,185.59
Step by Step Solution
- Step 1: Write the proportion equation
458,497.63 : 686,137.44 = 368,318.75 : x - Step 2: Convert to fraction form
458,497.63/686,137.44 = 368,318.75/x - Step 3: Cross multiply
458,497.63x = 686,137.44 × 368,318.75 - Step 4: Simplify right side
458,497.63x = 252,717,284,229.00 - Step 5: Solve for x
x = 252,717,284,229.00/458,497.63 - Step 6: Final answer
x = 551,185.59
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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.