Finding the Fourth Proportional to 639,516.98, 882,529.13 and 353,036.99
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Solution
The fourth proportional to 639,516.98, 882,529.13 and 353,036.99 is: 487,188.67
Step by Step Solution
- Step 1: Write the proportion equation
639,516.98 : 882,529.13 = 353,036.99 : x - Step 2: Convert to fraction form
639,516.98/882,529.13 = 353,036.99/x - Step 3: Cross multiply
639,516.98x = 882,529.13 × 353,036.99 - Step 4: Simplify right side
639,516.98x = 311,565,421,464.69 - Step 5: Solve for x
x = 311,565,421,464.69/639,516.98 - Step 6: Final answer
x = 487,188.67
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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.