Finding the Fourth Proportional to 644,842.63, 890,014.25 and 441,455.68
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Solution
The fourth proportional to 644,842.63, 890,014.25 and 441,455.68 is: 609,298.80
Step by Step Solution
- Step 1: Write the proportion equation
644,842.63 : 890,014.25 = 441,455.68 : x - Step 2: Convert to fraction form
644,842.63/890,014.25 = 441,455.68/x - Step 3: Cross multiply
644,842.63x = 890,014.25 × 441,455.68 - Step 4: Simplify right side
644,842.63x = 392,901,839,286.09 - Step 5: Solve for x
x = 392,901,839,286.09/644,842.63 - Step 6: Final answer
x = 609,298.80
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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.