Finding the Fourth Proportional to 512,734.84, 707,588.35 and 283,306.91
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Solution
The fourth proportional to 512,734.84, 707,588.35 and 283,306.91 is: 390,971.42
Step by Step Solution
- Step 1: Write the proportion equation
512,734.84 : 707,588.35 = 283,306.91 : x - Step 2: Convert to fraction form
512,734.84/707,588.35 = 283,306.91/x - Step 3: Cross multiply
512,734.84x = 707,588.35 × 283,306.91 - Step 4: Simplify right side
512,734.84x = 200,464,667,573.96 - Step 5: Solve for x
x = 200,464,667,573.96/512,734.84 - Step 6: Final answer
x = 390,971.42
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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.