Finding the Fourth Proportional to 4,869,638.70, 7,304,458.05 and 1,323,782.70
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Solution
The fourth proportional to 4,869,638.70, 7,304,458.05 and 1,323,782.70 is: 1,985,674.05
Step by Step Solution
- Step 1: Write the proportion equation
4,869,638.70 : 7,304,458.05 = 1,323,782.70 : x - Step 2: Convert to fraction form
4,869,638.70/7,304,458.05 = 1,323,782.70/x - Step 3: Cross multiply
4,869,638.70x = 7,304,458.05 × 1,323,782.70 - Step 4: Simplify right side
4,869,638.70x = 9,669,515,199,465.74 - Step 5: Solve for x
x = 9,669,515,199,465.74/4,869,638.70 - Step 6: Final answer
x = 1,985,674.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.