Finding the Fourth Proportional to 486,974.86, 672,023.88 and 272,115.14
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Solution
The fourth proportional to 486,974.86, 672,023.88 and 272,115.14 is: 375,518.09
Step by Step Solution
- Step 1: Write the proportion equation
486,974.86 : 672,023.88 = 272,115.14 : x - Step 2: Convert to fraction form
486,974.86/672,023.88 = 272,115.14/x - Step 3: Cross multiply
486,974.86x = 672,023.88 × 272,115.14 - Step 4: Simplify right side
486,974.86x = 182,867,868,829.42 - Step 5: Solve for x
x = 182,867,868,829.42/486,974.86 - Step 6: Final answer
x = 375,518.09
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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.