Finding the Fourth Proportional to 4,245,772.40, 6,369,047.40 and 1,720,905.20
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Solution
The fourth proportional to 4,245,772.40, 6,369,047.40 and 1,720,905.20 is: 2,581,515.39
Step by Step Solution
- Step 1: Write the proportion equation
4,245,772.40 : 6,369,047.40 = 1,720,905.20 : x - Step 2: Convert to fraction form
4,245,772.40/6,369,047.40 = 1,720,905.20/x - Step 3: Cross multiply
4,245,772.40x = 6,369,047.40 × 1,720,905.20 - Step 4: Simplify right side
4,245,772.40x = 10,960,526,789,706.48 - Step 5: Solve for x
x = 10,960,526,789,706.48/4,245,772.40 - Step 6: Final answer
x = 2,581,515.39
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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.