Finding the Fourth Proportional to 717,718.70, 1,076,578.05 and 291,253.70
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Solution
The fourth proportional to 717,718.70, 1,076,578.05 and 291,253.70 is: 436,880.55
Step by Step Solution
- Step 1: Write the proportion equation
717,718.70 : 1,076,578.05 = 291,253.70 : x - Step 2: Convert to fraction form
717,718.70/1,076,578.05 = 291,253.70/x - Step 3: Cross multiply
717,718.70x = 1,076,578.05 × 291,253.70 - Step 4: Simplify right side
717,718.70x = 313,557,340,401.29 - Step 5: Solve for x
x = 313,557,340,401.29/717,718.70 - Step 6: Final answer
x = 436,880.55
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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.