Finding the Fourth Proportional to 639,671.06, 882,722.93 and 353,185.00
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Solution
The fourth proportional to 639,671.06, 882,722.93 and 353,185.00 is: 487,382.52
Step by Step Solution
- Step 1: Write the proportion equation
639,671.06 : 882,722.93 = 353,185.00 : x - Step 2: Convert to fraction form
639,671.06/882,722.93 = 353,185.00/x - Step 3: Cross multiply
639,671.06x = 882,722.93 × 353,185.00 - Step 4: Simplify right side
639,671.06x = 311,764,496,708.21 - Step 5: Solve for x
x = 311,764,496,708.21/639,671.06 - Step 6: Final answer
x = 487,382.52
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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.