Finding the Fourth Proportional to 462,790.87, 638,638.63 and 258,842.18
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Solution
The fourth proportional to 462,790.87, 638,638.63 and 258,842.18 is: 357,195.07
Step by Step Solution
- Step 1: Write the proportion equation
462,790.87 : 638,638.63 = 258,842.18 : x - Step 2: Convert to fraction form
462,790.87/638,638.63 = 258,842.18/x - Step 3: Cross multiply
462,790.87x = 638,638.63 × 258,842.18 - Step 4: Simplify right side
462,790.87x = 165,306,616,170.91 - Step 5: Solve for x
x = 165,306,616,170.91/462,790.87 - Step 6: Final answer
x = 357,195.07
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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.