Finding the Fourth Proportional to 812,529.78, 1,218,129.69 and 306,803.80
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Solution
The fourth proportional to 812,529.78, 1,218,129.69 and 306,803.80 is: 459,954.61
Step by Step Solution
- Step 1: Write the proportion equation
812,529.78 : 1,218,129.69 = 306,803.80 : x - Step 2: Convert to fraction form
812,529.78/1,218,129.69 = 306,803.80/x - Step 3: Cross multiply
812,529.78x = 1,218,129.69 × 306,803.80 - Step 4: Simplify right side
812,529.78x = 373,726,818,732.23 - Step 5: Solve for x
x = 373,726,818,732.23/812,529.78 - Step 6: Final answer
x = 459,954.61
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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.