Finding the Fourth Proportional to 659,387.99, 987,950.88 and 442,840.82
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Solution
The fourth proportional to 659,387.99, 987,950.88 and 442,840.82 is: 663,501.58
Step by Step Solution
- Step 1: Write the proportion equation
659,387.99 : 987,950.88 = 442,840.82 : x - Step 2: Convert to fraction form
659,387.99/987,950.88 = 442,840.82/x - Step 3: Cross multiply
659,387.99x = 987,950.88 × 442,840.82 - Step 4: Simplify right side
659,387.99x = 437,504,972,879.17 - Step 5: Solve for x
x = 437,504,972,879.17/659,387.99 - Step 6: Final answer
x = 663,501.58
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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.