Finding the Fourth Proportional to 847,312.62, 1,270,968.21 and 216,226.44
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Solution
The fourth proportional to 847,312.62, 1,270,968.21 and 216,226.44 is: 324,339.48
Step by Step Solution
- Step 1: Write the proportion equation
847,312.62 : 1,270,968.21 = 216,226.44 : x - Step 2: Convert to fraction form
847,312.62/1,270,968.21 = 216,226.44/x - Step 3: Cross multiply
847,312.62x = 1,270,968.21 × 216,226.44 - Step 4: Simplify right side
847,312.62x = 274,816,931,401.47 - Step 5: Solve for x
x = 274,816,931,401.47/847,312.62 - Step 6: Final answer
x = 324,339.48
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1.5x scale
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.