Finding the Fourth Proportional to 759,013.44, 1,138,479.12 and 385,026.72
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Solution
The fourth proportional to 759,013.44, 1,138,479.12 and 385,026.72 is: 577,519.26
Step by Step Solution
- Step 1: Write the proportion equation
759,013.44 : 1,138,479.12 = 385,026.72 : x - Step 2: Convert to fraction form
759,013.44/1,138,479.12 = 385,026.72/x - Step 3: Cross multiply
759,013.44x = 1,138,479.12 × 385,026.72 - Step 4: Simplify right side
759,013.44x = 438,344,881,362.09 - Step 5: Solve for x
x = 438,344,881,362.09/759,013.44 - Step 6: Final answer
x = 577,519.26
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.