Finding the Fourth Proportional to 783,142.53, 1,080,670.66 and 434,292.94
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Solution
The fourth proportional to 783,142.53, 1,080,670.66 and 434,292.94 is: 599,287.65
Step by Step Solution
- Step 1: Write the proportion equation
783,142.53 : 1,080,670.66 = 434,292.94 : x - Step 2: Convert to fraction form
783,142.53/1,080,670.66 = 434,292.94/x - Step 3: Cross multiply
783,142.53x = 1,080,670.66 × 434,292.94 - Step 4: Simplify right side
783,142.53x = 469,327,640,811.14 - Step 5: Solve for x
x = 469,327,640,811.14/783,142.53 - Step 6: Final answer
x = 599,287.65
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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.