Finding the Fourth Proportional to 636,794.63, 878,696.53 and 430,511.60
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Solution
The fourth proportional to 636,794.63, 878,696.53 and 430,511.60 is: 594,051.88
Step by Step Solution
- Step 1: Write the proportion equation
636,794.63 : 878,696.53 = 430,511.60 : x - Step 2: Convert to fraction form
636,794.63/878,696.53 = 430,511.60/x - Step 3: Cross multiply
636,794.63x = 878,696.53 × 430,511.60 - Step 4: Simplify right side
636,794.63x = 378,289,049,044.75 - Step 5: Solve for x
x = 378,289,049,044.75/636,794.63 - Step 6: Final answer
x = 594,051.88
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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.