Finding the Fourth Proportional to 478,415.34, 717,624.02 and 449,186.09
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Solution
The fourth proportional to 478,415.34, 717,624.02 and 449,186.09 is: 673,780.08
Step by Step Solution
- Step 1: Write the proportion equation
478,415.34 : 717,624.02 = 449,186.09 : x - Step 2: Convert to fraction form
478,415.34/717,624.02 = 449,186.09/x - Step 3: Cross multiply
478,415.34x = 717,624.02 × 449,186.09 - Step 4: Simplify right side
478,415.34x = 322,346,725,168.73 - Step 5: Solve for x
x = 322,346,725,168.73/478,415.34 - Step 6: Final answer
x = 673,780.08
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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.