Finding the Fourth Proportional to 916,044.19, 1,372,665.02 and 489,640.68
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Solution
The fourth proportional to 916,044.19, 1,372,665.02 and 489,640.68 is: 733,712.02
Step by Step Solution
- Step 1: Write the proportion equation
916,044.19 : 1,372,665.02 = 489,640.68 : x - Step 2: Convert to fraction form
916,044.19/1,372,665.02 = 489,640.68/x - Step 3: Cross multiply
916,044.19x = 1,372,665.02 × 489,640.68 - Step 4: Simplify right side
916,044.19x = 672,112,631,356.81 - Step 5: Solve for x
x = 672,112,631,356.81/916,044.19 - Step 6: Final answer
x = 733,712.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.