Finding the Fourth Proportional to 430,497.28, 645,891.24 and 190,578.09
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Solution
The fourth proportional to 430,497.28, 645,891.24 and 190,578.09 is: 285,931.47
Step by Step Solution
- Step 1: Write the proportion equation
430,497.28 : 645,891.24 = 190,578.09 : x - Step 2: Convert to fraction form
430,497.28/645,891.24 = 190,578.09/x - Step 3: Cross multiply
430,497.28x = 645,891.24 × 190,578.09 - Step 4: Simplify right side
430,497.28x = 123,092,718,866.93 - Step 5: Solve for x
x = 123,092,718,866.93/430,497.28 - Step 6: Final answer
x = 285,931.47
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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.