Finding the Fourth Proportional to 512,991.24, 707,905.98 and 283,536.78
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Solution
The fourth proportional to 512,991.24, 707,905.98 and 283,536.78 is: 391,268.63
Step by Step Solution
- Step 1: Write the proportion equation
512,991.24 : 707,905.98 = 283,536.78 : x - Step 2: Convert to fraction form
512,991.24/707,905.98 = 283,536.78/x - Step 3: Cross multiply
512,991.24x = 707,905.98 × 283,536.78 - Step 4: Simplify right side
512,991.24x = 200,717,382,111.94 - Step 5: Solve for x
x = 200,717,382,111.94/512,991.24 - Step 6: Final answer
x = 391,268.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.