Finding the Fourth Proportional to 717,405.21, 1,076,076.68 and 268,129.97
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Solution
The fourth proportional to 717,405.21, 1,076,076.68 and 268,129.97 is: 402,183.31
Step by Step Solution
- Step 1: Write the proportion equation
717,405.21 : 1,076,076.68 = 268,129.97 : x - Step 2: Convert to fraction form
717,405.21/1,076,076.68 = 268,129.97/x - Step 3: Cross multiply
717,405.21x = 1,076,076.68 × 268,129.97 - Step 4: Simplify right side
717,405.21x = 288,528,401,205.07 - Step 5: Solve for x
x = 288,528,401,205.07/717,405.21 - Step 6: Final answer
x = 402,183.31
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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.