Finding the Fourth Proportional to 1,381,149.12, 1,905,864.48 and 769,255.68
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Solution
The fourth proportional to 1,381,149.12, 1,905,864.48 and 769,255.68 is: 1,061,505.28
Step by Step Solution
- Step 1: Write the proportion equation
1,381,149.12 : 1,905,864.48 = 769,255.68 : x - Step 2: Convert to fraction form
1,381,149.12/1,905,864.48 = 769,255.68/x - Step 3: Cross multiply
1,381,149.12x = 1,905,864.48 × 769,255.68 - Step 4: Simplify right side
1,381,149.12x = 1,466,097,076,550.25 - Step 5: Solve for x
x = 1,466,097,076,550.25/1,381,149.12 - Step 6: Final answer
x = 1,061,505.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.