Finding the Fourth Proportional to 325,811.70, 488,717.55 and 247,079.70
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Solution
The fourth proportional to 325,811.70, 488,717.55 and 247,079.70 is: 370,619.55
Step by Step Solution
- Step 1: Write the proportion equation
325,811.70 : 488,717.55 = 247,079.70 : x - Step 2: Convert to fraction form
325,811.70/488,717.55 = 247,079.70/x - Step 3: Cross multiply
325,811.70x = 488,717.55 × 247,079.70 - Step 4: Simplify right side
325,811.70x = 120,752,185,638.74 - Step 5: Solve for x
x = 120,752,185,638.74/325,811.70 - Step 6: Final answer
x = 370,619.55
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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.