Finding the Fourth Proportional to 1,424,319.92, 1,965,561.34 and 779,738.12
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Solution
The fourth proportional to 1,424,319.92, 1,965,561.34 and 779,738.12 is: 1,076,038.52
Step by Step Solution
- Step 1: Write the proportion equation
1,424,319.92 : 1,965,561.34 = 779,738.12 : x - Step 2: Convert to fraction form
1,424,319.92/1,965,561.34 = 779,738.12/x - Step 3: Cross multiply
1,424,319.92x = 1,965,561.34 × 779,738.12 - Step 4: Simplify right side
1,424,319.92x = 1,532,623,103,996.28 - Step 5: Solve for x
x = 1,532,623,103,996.28/1,424,319.92 - Step 6: Final answer
x = 1,076,038.52
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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.