Finding the Fourth Proportional to 556,963.41, 768,589.62 and 315,240.79
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Solution
The fourth proportional to 556,963.41, 768,589.62 and 315,240.79 is: 435,021.03
Step by Step Solution
- Step 1: Write the proportion equation
556,963.41 : 768,589.62 = 315,240.79 : x - Step 2: Convert to fraction form
556,963.41/768,589.62 = 315,240.79/x - Step 3: Cross multiply
556,963.41x = 768,589.62 × 315,240.79 - Step 4: Simplify right side
556,963.41x = 242,290,799,339.87 - Step 5: Solve for x
x = 242,290,799,339.87/556,963.41 - Step 6: Final answer
x = 435,021.03
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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.