Finding the Fourth Proportional to 990,317.70, 1,485,577.20 and 341,809.50
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Solution
The fourth proportional to 990,317.70, 1,485,577.20 and 341,809.50 is: 512,748.99
Step by Step Solution
- Step 1: Write the proportion equation
990,317.70 : 1,485,577.20 = 341,809.50 : x - Step 2: Convert to fraction form
990,317.70/1,485,577.20 = 341,809.50/x - Step 3: Cross multiply
990,317.70x = 1,485,577.20 × 341,809.50 - Step 4: Simplify right side
990,317.70x = 507,784,399,943.40 - Step 5: Solve for x
x = 507,784,399,943.40/990,317.70 - Step 6: Final answer
x = 512,748.99
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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.