Finding the Fourth Proportional to 3,975,891.40, 5,968,502.70 and 3,947,897.80
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Solution
The fourth proportional to 3,975,891.40, 5,968,502.70 and 3,947,897.80 is: 5,926,479.45
Step by Step Solution
- Step 1: Write the proportion equation
3,975,891.40 : 5,968,502.70 = 3,947,897.80 : x - Step 2: Convert to fraction form
3,975,891.40/5,968,502.70 = 3,947,897.80/x - Step 3: Cross multiply
3,975,891.40x = 5,968,502.70 × 3,947,897.80 - Step 4: Simplify right side
3,975,891.40x = 23,563,038,678,624.06 - Step 5: Solve for x
x = 23,563,038,678,624.06/3,975,891.40 - Step 6: Final answer
x = 5,926,479.45
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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.