Finding the Fourth Proportional to 515,194.41, 771,790.95 and 289,867.80
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Solution
The fourth proportional to 515,194.41, 771,790.95 and 289,867.80 is: 434,238.69
Step by Step Solution
- Step 1: Write the proportion equation
515,194.41 : 771,790.95 = 289,867.80 : x - Step 2: Convert to fraction form
515,194.41/771,790.95 = 289,867.80/x - Step 3: Cross multiply
515,194.41x = 771,790.95 × 289,867.80 - Step 4: Simplify right side
515,194.41x = 223,717,344,736.41 - Step 5: Solve for x
x = 223,717,344,736.41/515,194.41 - Step 6: Final answer
x = 434,238.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.