Finding the Fourth Proportional to 512,735.84, 707,589.73 and 283,307.91
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Solution
The fourth proportional to 512,735.84, 707,589.73 and 283,307.91 is: 390,972.80
Step by Step Solution
- Step 1: Write the proportion equation
512,735.84 : 707,589.73 = 283,307.91 : x - Step 2: Convert to fraction form
512,735.84/707,589.73 = 283,307.91/x - Step 3: Cross multiply
512,735.84x = 707,589.73 × 283,307.91 - Step 4: Simplify right side
512,735.84x = 200,465,767,543.76 - Step 5: Solve for x
x = 200,465,767,543.76/512,735.84 - Step 6: Final answer
x = 390,972.80
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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.