Finding the Fourth Proportional to 719,990.75, 1,080,161.09 and 221,354.75
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Solution
The fourth proportional to 719,990.75, 1,080,161.09 and 221,354.75 is: 332,085.92
Step by Step Solution
- Step 1: Write the proportion equation
719,990.75 : 1,080,161.09 = 221,354.75 : x - Step 2: Convert to fraction form
719,990.75/1,080,161.09 = 221,354.75/x - Step 3: Cross multiply
719,990.75x = 1,080,161.09 × 221,354.75 - Step 4: Simplify right side
719,990.75x = 239,098,788,036.68 - Step 5: Solve for x
x = 239,098,788,036.68/719,990.75 - Step 6: Final answer
x = 332,085.92
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1.5x scale
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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.