Finding the Fourth Proportional to 667,953.28, 921,813.24 and 396,182.08
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Solution
The fourth proportional to 667,953.28, 921,813.24 and 396,182.08 is: 546,753.64
Step by Step Solution
- Step 1: Write the proportion equation
667,953.28 : 921,813.24 = 396,182.08 : x - Step 2: Convert to fraction form
667,953.28/921,813.24 = 396,182.08/x - Step 3: Cross multiply
667,953.28x = 921,813.24 × 396,182.08 - Step 4: Simplify right side
667,953.28x = 365,205,886,794.74 - Step 5: Solve for x
x = 365,205,886,794.74/667,953.28 - Step 6: Final answer
x = 546,753.64
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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.