Finding the Fourth Proportional to 403,729.10, 606,905.85 and 345,992.30
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Solution
The fourth proportional to 403,729.10, 606,905.85 and 345,992.30 is: 520,112.99
Step by Step Solution
- Step 1: Write the proportion equation
403,729.10 : 606,905.85 = 345,992.30 : x - Step 2: Convert to fraction form
403,729.10/606,905.85 = 345,992.30/x - Step 3: Cross multiply
403,729.10x = 606,905.85 × 345,992.30 - Step 4: Simplify right side
403,729.10x = 209,984,750,924.96 - Step 5: Solve for x
x = 209,984,750,924.96/403,729.10 - Step 6: Final answer
x = 520,112.99
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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.