Finding the Fourth Proportional to 512,349.80, 706,988.18 and 297,449.69
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Solution
The fourth proportional to 512,349.80, 706,988.18 and 297,449.69 is: 410,448.90
Step by Step Solution
- Step 1: Write the proportion equation
512,349.80 : 706,988.18 = 297,449.69 : x - Step 2: Convert to fraction form
512,349.80/706,988.18 = 297,449.69/x - Step 3: Cross multiply
512,349.80x = 706,988.18 × 297,449.69 - Step 4: Simplify right side
512,349.80x = 210,293,413,487.42 - Step 5: Solve for x
x = 210,293,413,487.42/512,349.80 - Step 6: Final answer
x = 410,448.90
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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.