Finding the Fourth Proportional to 486,994.68, 672,067.53 and 272,143.80
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Solution
The fourth proportional to 486,994.68, 672,067.53 and 272,143.80 is: 375,566.75
Step by Step Solution
- Step 1: Write the proportion equation
486,994.68 : 672,067.53 = 272,143.80 : x - Step 2: Convert to fraction form
486,994.68/672,067.53 = 272,143.80/x - Step 3: Cross multiply
486,994.68x = 672,067.53 × 272,143.80 - Step 4: Simplify right side
486,994.68x = 182,899,011,470.81 - Step 5: Solve for x
x = 182,899,011,470.81/486,994.68 - Step 6: Final answer
x = 375,566.75
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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.