Finding the Fourth Proportional to 912,427.16, 1,368,552.70 and 281,171.48
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Solution
The fourth proportional to 912,427.16, 1,368,552.70 and 281,171.48 is: 421,730.09
Step by Step Solution
- Step 1: Write the proportion equation
912,427.16 : 1,368,552.70 = 281,171.48 : x - Step 2: Convert to fraction form
912,427.16/1,368,552.70 = 281,171.48/x - Step 3: Cross multiply
912,427.16x = 1,368,552.70 × 281,171.48 - Step 4: Simplify right side
912,427.16x = 384,797,988,117.00 - Step 5: Solve for x
x = 384,797,988,117.00/912,427.16 - Step 6: Final answer
x = 421,730.09
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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.