Finding the Fourth Proportional to 512,483.91, 707,233.08 and 283,046.94
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Solution
The fourth proportional to 512,483.91, 707,233.08 and 283,046.94 is: 390,607.70
Step by Step Solution
- Step 1: Write the proportion equation
512,483.91 : 707,233.08 = 283,046.94 : x - Step 2: Convert to fraction form
512,483.91/707,233.08 = 283,046.94/x - Step 3: Cross multiply
512,483.91x = 707,233.08 × 283,046.94 - Step 4: Simplify right side
512,483.91x = 200,180,159,160.78 - Step 5: Solve for x
x = 200,180,159,160.78/512,483.91 - Step 6: Final answer
x = 390,607.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.