Finding the Fourth Proportional to 921,881, 1,382,963.97 and 314,527.12
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Solution
The fourth proportional to 921,881, 1,382,963.97 and 314,527.12 is: 471,839.29
Step by Step Solution
- Step 1: Write the proportion equation
921,881 : 1,382,963.97 = 314,527.12 : x - Step 2: Convert to fraction form
921,881/1,382,963.97 = 314,527.12/x - Step 3: Cross multiply
921,881x = 1,382,963.97 × 314,527.12 - Step 4: Simplify right side
921,881x = 434,979,674,547.87 - Step 5: Solve for x
x = 434,979,674,547.87/921,881 - Step 6: Final answer
x = 471,839.29
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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.