Finding the Fourth Proportional to 425,895.12, 638,843.04 and 239,037.84
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Solution
The fourth proportional to 425,895.12, 638,843.04 and 239,037.84 is: 358,556.96
Step by Step Solution
- Step 1: Write the proportion equation
425,895.12 : 638,843.04 = 239,037.84 : x - Step 2: Convert to fraction form
425,895.12/638,843.04 = 239,037.84/x - Step 3: Cross multiply
425,895.12x = 638,843.04 × 239,037.84 - Step 4: Simplify right side
425,895.12x = 152,707,660,380.63 - Step 5: Solve for x
x = 152,707,660,380.63/425,895.12 - Step 6: Final answer
x = 358,556.96
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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.