Finding the Fourth Proportional to 418,981.60, 578,194.74 and 227,990.88
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Solution
The fourth proportional to 418,981.60, 578,194.74 and 227,990.88 is: 314,627.49
Step by Step Solution
- Step 1: Write the proportion equation
418,981.60 : 578,194.74 = 227,990.88 : x - Step 2: Convert to fraction form
418,981.60/578,194.74 = 227,990.88/x - Step 3: Cross multiply
418,981.60x = 578,194.74 × 227,990.88 - Step 4: Simplify right side
418,981.60x = 131,823,127,583.97 - Step 5: Solve for x
x = 131,823,127,583.97/418,981.60 - Step 6: Final answer
x = 314,627.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.