Finding the Fourth Proportional to 782,984.68, 1,080,482.70 and 443,455.36
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Solution
The fourth proportional to 782,984.68, 1,080,482.70 and 443,455.36 is: 611,947.92
Step by Step Solution
- Step 1: Write the proportion equation
782,984.68 : 1,080,482.70 = 443,455.36 : x - Step 2: Convert to fraction form
782,984.68/1,080,482.70 = 443,455.36/x - Step 3: Cross multiply
782,984.68x = 1,080,482.70 × 443,455.36 - Step 4: Simplify right side
782,984.68x = 479,145,844,702.27 - Step 5: Solve for x
x = 479,145,844,702.27/782,984.68 - Step 6: Final answer
x = 611,947.92
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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.