Finding the Fourth Proportional to 1,554,218.70, 2,331,459.21 and 432,287.70
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Solution
The fourth proportional to 1,554,218.70, 2,331,459.21 and 432,287.70 is: 648,468.03
Step by Step Solution
- Step 1: Write the proportion equation
1,554,218.70 : 2,331,459.21 = 432,287.70 : x - Step 2: Convert to fraction form
1,554,218.70/2,331,459.21 = 432,287.70/x - Step 3: Cross multiply
1,554,218.70x = 2,331,459.21 × 432,287.70 - Step 4: Simplify right side
1,554,218.70x = 1,007,861,139,534.72 - Step 5: Solve for x
x = 1,007,861,139,534.72/1,554,218.70 - Step 6: Final answer
x = 648,468.03
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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.