Finding the Fourth Proportional to 916,067.60, 1,372,700.08 and 489,664.08
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Solution
The fourth proportional to 916,067.60, 1,372,700.08 and 489,664.08 is: 733,747.07
Step by Step Solution
- Step 1: Write the proportion equation
916,067.60 : 1,372,700.08 = 489,664.08 : x - Step 2: Convert to fraction form
916,067.60/1,372,700.08 = 489,664.08/x - Step 3: Cross multiply
916,067.60x = 1,372,700.08 × 489,664.08 - Step 4: Simplify right side
916,067.60x = 672,161,921,789.13 - Step 5: Solve for x
x = 672,161,921,789.13/916,067.60 - Step 6: Final answer
x = 733,747.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.