Finding the Fourth Proportional to 639,412.98, 882,390.00 and 352,933.15
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Solution
The fourth proportional to 639,412.98, 882,390.00 and 352,933.15 is: 487,047.79
Step by Step Solution
- Step 1: Write the proportion equation
639,412.98 : 882,390.00 = 352,933.15 : x - Step 2: Convert to fraction form
639,412.98/882,390.00 = 352,933.15/x - Step 3: Cross multiply
639,412.98x = 882,390.00 × 352,933.15 - Step 4: Simplify right side
639,412.98x = 311,424,678,699.03 - Step 5: Solve for x
x = 311,424,678,699.03/639,412.98 - Step 6: Final answer
x = 487,047.79
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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.