Finding the Fourth Proportional to 644,817.84, 965,965.55 and 531,128.88
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Solution
The fourth proportional to 644,817.84, 965,965.55 and 531,128.88 is: 795,654.47
Step by Step Solution
- Step 1: Write the proportion equation
644,817.84 : 965,965.55 = 531,128.88 : x - Step 2: Convert to fraction form
644,817.84/965,965.55 = 531,128.88/x - Step 3: Cross multiply
644,817.84x = 965,965.55 × 531,128.88 - Step 4: Simplify right side
644,817.84x = 513,052,198,034.44 - Step 5: Solve for x
x = 513,052,198,034.44/644,817.84 - Step 6: Final answer
x = 795,654.47
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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.