Finding the Fourth Proportional to 2,489,071.44, 3,434,861.88 and 1,386,495.12
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Solution
The fourth proportional to 2,489,071.44, 3,434,861.88 and 1,386,495.12 is: 1,913,331.68
Step by Step Solution
- Step 1: Write the proportion equation
2,489,071.44 : 3,434,861.88 = 1,386,495.12 : x - Step 2: Convert to fraction form
2,489,071.44/3,434,861.88 = 1,386,495.12/x - Step 3: Cross multiply
2,489,071.44x = 3,434,861.88 × 1,386,495.12 - Step 4: Simplify right side
2,489,071.44x = 4,762,419,234,494.03 - Step 5: Solve for x
x = 4,762,419,234,494.03/2,489,071.44 - Step 6: Final answer
x = 1,913,331.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.