Finding the Fourth Proportional to 792,612.73, 1,188,905.32 and 319,285.99
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Solution
The fourth proportional to 792,612.73, 1,188,905.32 and 319,285.99 is: 478,923.44
Step by Step Solution
- Step 1: Write the proportion equation
792,612.73 : 1,188,905.32 = 319,285.99 : x - Step 2: Convert to fraction form
792,612.73/1,188,905.32 = 319,285.99/x - Step 3: Cross multiply
792,612.73x = 1,188,905.32 × 319,285.99 - Step 4: Simplify right side
792,612.73x = 379,600,812,112.47 - Step 5: Solve for x
x = 379,600,812,112.47/792,612.73 - Step 6: Final answer
x = 478,923.44
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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.