Finding the Fourth Proportional to 425,378.08, 587,063.12 and 317,761.28
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Solution
The fourth proportional to 425,378.08, 587,063.12 and 317,761.28 is: 438,541.47
Step by Step Solution
- Step 1: Write the proportion equation
425,378.08 : 587,063.12 = 317,761.28 : x - Step 2: Convert to fraction form
425,378.08/587,063.12 = 317,761.28/x - Step 3: Cross multiply
425,378.08x = 587,063.12 × 317,761.28 - Step 4: Simplify right side
425,378.08x = 186,545,928,451.99 - Step 5: Solve for x
x = 186,545,928,451.99/425,378.08 - Step 6: Final answer
x = 438,541.47
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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.