Finding the Fourth Proportional to 669,687.48, 923,534.42 and 439,840.28
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Solution
The fourth proportional to 669,687.48, 923,534.42 and 439,840.28 is: 606,562.99
Step by Step Solution
- Step 1: Write the proportion equation
669,687.48 : 923,534.42 = 439,840.28 : x - Step 2: Convert to fraction form
669,687.48/923,534.42 = 439,840.28/x - Step 3: Cross multiply
669,687.48x = 923,534.42 × 439,840.28 - Step 4: Simplify right side
669,687.48x = 406,207,637,882.44 - Step 5: Solve for x
x = 406,207,637,882.44/669,687.48 - Step 6: Final answer
x = 606,562.99
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1.5x scale
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.