Finding the Fourth Proportional to 753,415.49, 1,039,732.13 and 409,251.31
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Solution
The fourth proportional to 753,415.49, 1,039,732.13 and 409,251.31 is: 564,776.99
Step by Step Solution
- Step 1: Write the proportion equation
753,415.49 : 1,039,732.13 = 409,251.31 : x - Step 2: Convert to fraction form
753,415.49/1,039,732.13 = 409,251.31/x - Step 3: Cross multiply
753,415.49x = 1,039,732.13 × 409,251.31 - Step 4: Simplify right side
753,415.49x = 425,511,736,251.59 - Step 5: Solve for x
x = 425,511,736,251.59/753,415.49 - Step 6: Final answer
x = 564,776.99
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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.