Finding the Fourth Proportional to 476,447.91, 657,310.58 and 272,389.20
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Solution
The fourth proportional to 476,447.91, 657,310.58 and 272,389.20 is: 375,789.88
Step by Step Solution
- Step 1: Write the proportion equation
476,447.91 : 657,310.58 = 272,389.20 : x - Step 2: Convert to fraction form
476,447.91/657,310.58 = 272,389.20/x - Step 3: Cross multiply
476,447.91x = 657,310.58 × 272,389.20 - Step 4: Simplify right side
476,447.91x = 179,044,301,675.79 - Step 5: Solve for x
x = 179,044,301,675.79/476,447.91 - Step 6: Final answer
x = 375,789.88
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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.