Finding the Fourth Proportional to 778,912.20, 1,168,368.30 and 474,481.80
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Solution
The fourth proportional to 778,912.20, 1,168,368.30 and 474,481.80 is: 711,722.70
Step by Step Solution
- Step 1: Write the proportion equation
778,912.20 : 1,168,368.30 = 474,481.80 : x - Step 2: Convert to fraction form
778,912.20/1,168,368.30 = 474,481.80/x - Step 3: Cross multiply
778,912.20x = 1,168,368.30 × 474,481.80 - Step 4: Simplify right side
778,912.20x = 554,369,494,046.94 - Step 5: Solve for x
x = 554,369,494,046.94/778,912.20 - Step 6: Final answer
x = 711,722.70
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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.