Finding the Fourth Proportional to 405,970.70, 608,789.57 and 121,561.07
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Solution
The fourth proportional to 405,970.70, 608,789.57 and 121,561.07 is: 182,291.75
Step by Step Solution
- Step 1: Write the proportion equation
405,970.70 : 608,789.57 = 121,561.07 : x - Step 2: Convert to fraction form
405,970.70/608,789.57 = 121,561.07/x - Step 3: Cross multiply
405,970.70x = 608,789.57 × 121,561.07 - Step 4: Simplify right side
405,970.70x = 74,005,107,882.29 - Step 5: Solve for x
x = 74,005,107,882.29/405,970.70 - Step 6: Final answer
x = 182,291.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.