Finding the Fourth Proportional to 499,787.14, 688,988.84 and 356,298.07
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Solution
The fourth proportional to 499,787.14, 688,988.84 and 356,298.07 is: 491,179.89
Step by Step Solution
- Step 1: Write the proportion equation
499,787.14 : 688,988.84 = 356,298.07 : x - Step 2: Convert to fraction form
499,787.14/688,988.84 = 356,298.07/x - Step 3: Cross multiply
499,787.14x = 688,988.84 × 356,298.07 - Step 4: Simplify right side
499,787.14x = 245,485,388,717.10 - Step 5: Solve for x
x = 245,485,388,717.10/499,787.14 - Step 6: Final answer
x = 491,179.89
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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.