Finding the Fourth Proportional to 669,917.64, 924,527.70 and 383,431.62
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Solution
The fourth proportional to 669,917.64, 924,527.70 and 383,431.62 is: 529,159.31
Step by Step Solution
- Step 1: Write the proportion equation
669,917.64 : 924,527.70 = 383,431.62 : x - Step 2: Convert to fraction form
669,917.64/924,527.70 = 383,431.62/x - Step 3: Cross multiply
669,917.64x = 924,527.70 × 383,431.62 - Step 4: Simplify right side
669,917.64x = 354,493,153,745.87 - Step 5: Solve for x
x = 354,493,153,745.87/669,917.64 - Step 6: Final answer
x = 529,159.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.