Finding the Fourth Proportional to 645,170.24, 890,267.04 and 358,644.32
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Solution
The fourth proportional to 645,170.24, 890,267.04 and 358,644.32 is: 494,891.42
Step by Step Solution
- Step 1: Write the proportion equation
645,170.24 : 890,267.04 = 358,644.32 : x - Step 2: Convert to fraction form
645,170.24/890,267.04 = 358,644.32/x - Step 3: Cross multiply
645,170.24x = 890,267.04 × 358,644.32 - Step 4: Simplify right side
645,170.24x = 319,289,217,179.21 - Step 5: Solve for x
x = 319,289,217,179.21/645,170.24 - Step 6: Final answer
x = 494,891.42
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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.