Finding the Fourth Proportional to 1,431,444.73, 1,975,418.28 and 786,892.09
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Solution
The fourth proportional to 1,431,444.73, 1,975,418.28 and 786,892.09 is: 1,085,924.58
Step by Step Solution
- Step 1: Write the proportion equation
1,431,444.73 : 1,975,418.28 = 786,892.09 : x - Step 2: Convert to fraction form
1,431,444.73/1,975,418.28 = 786,892.09/x - Step 3: Cross multiply
1,431,444.73x = 1,975,418.28 × 786,892.09 - Step 4: Simplify right side
1,431,444.73x = 1,554,441,018,973.41 - Step 5: Solve for x
x = 1,554,441,018,973.41/1,431,444.73 - Step 6: Final answer
x = 1,085,924.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.