Finding the Fourth Proportional to 686,059.22, 1,029,440.12 and 326,636.71
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Solution
The fourth proportional to 686,059.22, 1,029,440.12 and 326,636.71 is: 490,122.31
Step by Step Solution
- Step 1: Write the proportion equation
686,059.22 : 1,029,440.12 = 326,636.71 : x - Step 2: Convert to fraction form
686,059.22/1,029,440.12 = 326,636.71/x - Step 3: Cross multiply
686,059.22x = 1,029,440.12 × 326,636.71 - Step 4: Simplify right side
686,059.22x = 336,252,929,732.02 - Step 5: Solve for x
x = 336,252,929,732.02/686,059.22 - Step 6: Final answer
x = 490,122.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.