Finding the Fourth Proportional to 4,679,391.68, 7,019,087.52 and 1,687,575.68
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Solution
The fourth proportional to 4,679,391.68, 7,019,087.52 and 1,687,575.68 is: 2,531,363.52
Step by Step Solution
- Step 1: Write the proportion equation
4,679,391.68 : 7,019,087.52 = 1,687,575.68 : x - Step 2: Convert to fraction form
4,679,391.68/7,019,087.52 = 1,687,575.68/x - Step 3: Cross multiply
4,679,391.68x = 7,019,087.52 × 1,687,575.68 - Step 4: Simplify right side
4,679,391.68x = 11,845,241,394,543.51 - Step 5: Solve for x
x = 11,845,241,394,543.51/4,679,391.68 - Step 6: Final answer
x = 2,531,363.52
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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.