Finding the Fourth Proportional to 646,405.73, 969,605.94 and 197,125.28
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Solution
The fourth proportional to 646,405.73, 969,605.94 and 197,125.28 is: 295,687.11
Step by Step Solution
- Step 1: Write the proportion equation
646,405.73 : 969,605.94 = 197,125.28 : x - Step 2: Convert to fraction form
646,405.73/969,605.94 = 197,125.28/x - Step 3: Cross multiply
646,405.73x = 969,605.94 × 197,125.28 - Step 4: Simplify right side
646,405.73x = 191,133,837,564.13 - Step 5: Solve for x
x = 191,133,837,564.13/646,405.73 - Step 6: Final answer
x = 295,687.11
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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.