Finding the Fourth Proportional to 1,360,909.44, 1,878,128.64 and 757,310.40
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Solution
The fourth proportional to 1,360,909.44, 1,878,128.64 and 757,310.40 is: 1,045,129.32
Step by Step Solution
- Step 1: Write the proportion equation
1,360,909.44 : 1,878,128.64 = 757,310.40 : x - Step 2: Convert to fraction form
1,360,909.44/1,878,128.64 = 757,310.40/x - Step 3: Cross multiply
1,360,909.44x = 1,878,128.64 × 757,310.40 - Step 4: Simplify right side
1,360,909.44x = 1,422,326,351,609.86 - Step 5: Solve for x
x = 1,422,326,351,609.86/1,360,909.44 - Step 6: Final answer
x = 1,045,129.32
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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.