Finding the Fourth Proportional to 687,369.94, 1,031,072.19 and 188,732.50
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Solution
The fourth proportional to 687,369.94, 1,031,072.19 and 188,732.50 is: 283,103.49
Step by Step Solution
- Step 1: Write the proportion equation
687,369.94 : 1,031,072.19 = 188,732.50 : x - Step 2: Convert to fraction form
687,369.94/1,031,072.19 = 188,732.50/x - Step 3: Cross multiply
687,369.94x = 1,031,072.19 × 188,732.50 - Step 4: Simplify right side
687,369.94x = 194,596,832,099.18 - Step 5: Solve for x
x = 194,596,832,099.18/687,369.94 - Step 6: Final answer
x = 283,103.49
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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.