Finding the Fourth Proportional to 783,201.84, 1,080,840.56 and 443,670.09
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Solution
The fourth proportional to 783,201.84, 1,080,840.56 and 443,670.09 is: 612,277.20
Step by Step Solution
- Step 1: Write the proportion equation
783,201.84 : 1,080,840.56 = 443,670.09 : x - Step 2: Convert to fraction form
783,201.84/1,080,840.56 = 443,670.09/x - Step 3: Cross multiply
783,201.84x = 1,080,840.56 × 443,670.09 - Step 4: Simplify right side
783,201.84x = 479,536,626,312.50 - Step 5: Solve for x
x = 479,536,626,312.50/783,201.84 - Step 6: Final answer
x = 612,277.20
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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.