Finding the Fourth Proportional to 1,228,531.12, 1,842,889.98 and 418,663.84
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Solution
The fourth proportional to 1,228,531.12, 1,842,889.98 and 418,663.84 is: 628,027.56
Step by Step Solution
- Step 1: Write the proportion equation
1,228,531.12 : 1,842,889.98 = 418,663.84 : x - Step 2: Convert to fraction form
1,228,531.12/1,842,889.98 = 418,663.84/x - Step 3: Cross multiply
1,228,531.12x = 1,842,889.98 × 418,663.84 - Step 4: Simplify right side
1,228,531.12x = 771,551,395,724.32 - Step 5: Solve for x
x = 771,551,395,724.32/1,228,531.12 - Step 6: Final answer
x = 628,027.56
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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.