Finding the Fourth Proportional to 543,529.20, 750,139.50 and 328,670.80
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Solution
The fourth proportional to 543,529.20, 750,139.50 and 328,670.80 is: 453,607.55
Step by Step Solution
- Step 1: Write the proportion equation
543,529.20 : 750,139.50 = 328,670.80 : x - Step 2: Convert to fraction form
543,529.20/750,139.50 = 328,670.80/x - Step 3: Cross multiply
543,529.20x = 750,139.50 × 328,670.80 - Step 4: Simplify right side
543,529.20x = 246,548,949,576.60 - Step 5: Solve for x
x = 246,548,949,576.60/543,529.20 - Step 6: Final answer
x = 453,607.55
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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.