Finding the Fourth Proportional to 486,586.58, 671,495.12 and 268,790.74
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Solution
The fourth proportional to 486,586.58, 671,495.12 and 268,790.74 is: 370,934.34
Step by Step Solution
- Step 1: Write the proportion equation
486,586.58 : 671,495.12 = 268,790.74 : x - Step 2: Convert to fraction form
486,586.58/671,495.12 = 268,790.74/x - Step 3: Cross multiply
486,586.58x = 671,495.12 × 268,790.74 - Step 4: Simplify right side
486,586.58x = 180,491,670,211.19 - Step 5: Solve for x
x = 180,491,670,211.19/486,586.58 - Step 6: Final answer
x = 370,934.34
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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.