Finding the Fourth Proportional to 1,992,371.79, 2,749,391.55 and 1,176,839.49
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Solution
The fourth proportional to 1,992,371.79, 2,749,391.55 and 1,176,839.49 is: 1,623,990.34
Step by Step Solution
- Step 1: Write the proportion equation
1,992,371.79 : 2,749,391.55 = 1,176,839.49 : x - Step 2: Convert to fraction form
1,992,371.79/2,749,391.55 = 1,176,839.49/x - Step 3: Cross multiply
1,992,371.79x = 2,749,391.55 × 1,176,839.49 - Step 4: Simplify right side
1,992,371.79x = 3,235,592,549,512.31 - Step 5: Solve for x
x = 3,235,592,549,512.31/1,992,371.79 - Step 6: Final answer
x = 1,623,990.34
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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.