Finding the Fourth Proportional to 663,318.30, 915,382.26 and 376,854.09
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Solution
The fourth proportional to 663,318.30, 915,382.26 and 376,854.09 is: 520,060.35
Step by Step Solution
- Step 1: Write the proportion equation
663,318.30 : 915,382.26 = 376,854.09 : x - Step 2: Convert to fraction form
663,318.30/915,382.26 = 376,854.09/x - Step 3: Cross multiply
663,318.30x = 915,382.26 × 376,854.09 - Step 4: Simplify right side
663,318.30x = 344,965,548,594.44 - Step 5: Solve for x
x = 344,965,548,594.44/663,318.30 - Step 6: Final answer
x = 520,060.35
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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.