Finding the Fourth Proportional to 512,513.42, 707,312.25 and 286,202.66
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Solution
The fourth proportional to 512,513.42, 707,312.25 and 286,202.66 is: 394,984.09
Step by Step Solution
- Step 1: Write the proportion equation
512,513.42 : 707,312.25 = 286,202.66 : x - Step 2: Convert to fraction form
512,513.42/707,312.25 = 286,202.66/x - Step 3: Cross multiply
512,513.42x = 707,312.25 × 286,202.66 - Step 4: Simplify right side
512,513.42x = 202,434,647,400.59 - Step 5: Solve for x
x = 202,434,647,400.59/512,513.42 - Step 6: Final answer
x = 394,984.09
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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.