Finding the Fourth Proportional to 424,531.08, 636,819.48 and 108,990.72
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Solution
The fourth proportional to 424,531.08, 636,819.48 and 108,990.72 is: 163,491.95
Step by Step Solution
- Step 1: Write the proportion equation
424,531.08 : 636,819.48 = 108,990.72 : x - Step 2: Convert to fraction form
424,531.08/636,819.48 = 108,990.72/x - Step 3: Cross multiply
424,531.08x = 636,819.48 × 108,990.72 - Step 4: Simplify right side
424,531.08x = 69,407,413,635.23 - Step 5: Solve for x
x = 69,407,413,635.23/424,531.08 - Step 6: Final answer
x = 163,491.95
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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.