Finding the Fourth Proportional to 512,421.24, 707,133.91 and 282,988.23
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Solution
The fourth proportional to 512,421.24, 707,133.91 and 282,988.23 is: 390,519.67
Step by Step Solution
- Step 1: Write the proportion equation
512,421.24 : 707,133.91 = 282,988.23 : x - Step 2: Convert to fraction form
512,421.24/707,133.91 = 282,988.23/x - Step 3: Cross multiply
512,421.24x = 707,133.91 × 282,988.23 - Step 4: Simplify right side
512,421.24x = 200,110,573,563.88 - Step 5: Solve for x
x = 200,110,573,563.88/512,421.24 - Step 6: Final answer
x = 390,519.67
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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.