Finding the Fourth Proportional to 988,376.73, 1,482,657.45 and 278,403.63
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Solution
The fourth proportional to 988,376.73, 1,482,657.45 and 278,403.63 is: 417,631.46
Step by Step Solution
- Step 1: Write the proportion equation
988,376.73 : 1,482,657.45 = 278,403.63 : x - Step 2: Convert to fraction form
988,376.73/1,482,657.45 = 278,403.63/x - Step 3: Cross multiply
988,376.73x = 1,482,657.45 × 278,403.63 - Step 4: Simplify right side
988,376.73x = 412,777,216,126.54 - Step 5: Solve for x
x = 412,777,216,126.54/988,376.73 - Step 6: Final answer
x = 417,631.46
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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.