Finding the Fourth Proportional to 1,126,504.61, 1,689,756.57 and 748,164.05
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Solution
The fourth proportional to 1,126,504.61, 1,689,756.57 and 748,164.05 is: 1,122,245.84
Step by Step Solution
- Step 1: Write the proportion equation
1,126,504.61 : 1,689,756.57 = 748,164.05 : x - Step 2: Convert to fraction form
1,126,504.61/1,689,756.57 = 748,164.05/x - Step 3: Cross multiply
1,126,504.61x = 1,689,756.57 × 748,164.05 - Step 4: Simplify right side
1,126,504.61x = 1,264,215,110,476.53 - Step 5: Solve for x
x = 1,264,215,110,476.53/1,126,504.61 - Step 6: Final answer
x = 1,122,245.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.