Finding the Fourth Proportional to 765,872.15, 1,147,541.58 and 465,440.31
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Solution
The fourth proportional to 765,872.15, 1,147,541.58 and 465,440.31 is: 697,390.70
Step by Step Solution
- Step 1: Write the proportion equation
765,872.15 : 1,147,541.58 = 465,440.31 : x - Step 2: Convert to fraction form
765,872.15/1,147,541.58 = 465,440.31/x - Step 3: Cross multiply
765,872.15x = 1,147,541.58 × 465,440.31 - Step 4: Simplify right side
765,872.15x = 534,112,108,733.09 - Step 5: Solve for x
x = 534,112,108,733.09/765,872.15 - Step 6: Final answer
x = 697,390.70
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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.