Finding the Fourth Proportional to 784,415.21, 1,177,120.50 and 335,139.49
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Solution
The fourth proportional to 784,415.21, 1,177,120.50 and 335,139.49 is: 502,921.87
Step by Step Solution
- Step 1: Write the proportion equation
784,415.21 : 1,177,120.50 = 335,139.49 : x - Step 2: Convert to fraction form
784,415.21/1,177,120.50 = 335,139.49/x - Step 3: Cross multiply
784,415.21x = 1,177,120.50 × 335,139.49 - Step 4: Simplify right side
784,415.21x = 394,499,564,253.17 - Step 5: Solve for x
x = 394,499,564,253.17/784,415.21 - Step 6: Final answer
x = 502,921.87
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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.