Finding the Fourth Proportional to 3,438,842.31, 4,745,429.01 and 1,910,916.63
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Solution
The fourth proportional to 3,438,842.31, 4,745,429.01 and 1,910,916.63 is: 2,636,968.61
Step by Step Solution
- Step 1: Write the proportion equation
3,438,842.31 : 4,745,429.01 = 1,910,916.63 : x - Step 2: Convert to fraction form
3,438,842.31/4,745,429.01 = 1,910,916.63/x - Step 3: Cross multiply
3,438,842.31x = 4,745,429.01 × 1,910,916.63 - Step 4: Simplify right side
3,438,842.31x = 9,068,119,211,693.44 - Step 5: Solve for x
x = 9,068,119,211,693.44/3,438,842.31 - Step 6: Final answer
x = 2,636,968.61
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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.