Finding the Fourth Proportional to 717,715.58, 1,076,537.57 and 268,403.40
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Solution
The fourth proportional to 717,715.58, 1,076,537.57 and 268,403.40 is: 402,591.71
Step by Step Solution
- Step 1: Write the proportion equation
717,715.58 : 1,076,537.57 = 268,403.40 : x - Step 2: Convert to fraction form
717,715.58/1,076,537.57 = 268,403.40/x - Step 3: Cross multiply
717,715.58x = 1,076,537.57 × 268,403.40 - Step 4: Simplify right side
717,715.58x = 288,946,342,673.72 - Step 5: Solve for x
x = 288,946,342,673.72/717,715.58 - Step 6: Final answer
x = 402,591.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.