Finding the Fourth Proportional to 1,431,402.94, 1,975,340.16 and 819,565.09
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Solution
The fourth proportional to 1,431,402.94, 1,975,340.16 and 819,565.09 is: 1,131,002.16
Step by Step Solution
- Step 1: Write the proportion equation
1,431,402.94 : 1,975,340.16 = 819,565.09 : x - Step 2: Convert to fraction form
1,431,402.94/1,975,340.16 = 819,565.09/x - Step 3: Cross multiply
1,431,402.94x = 1,975,340.16 × 819,565.09 - Step 4: Simplify right side
1,431,402.94x = 1,618,919,822,036.49 - Step 5: Solve for x
x = 1,618,919,822,036.49/1,431,402.94 - Step 6: Final answer
x = 1,131,002.16
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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.