Finding the Fourth Proportional to 768,252.09, 1,152,378.14 and 207,286.59
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Solution
The fourth proportional to 768,252.09, 1,152,378.14 and 207,286.59 is: 310,929.89
Step by Step Solution
- Step 1: Write the proportion equation
768,252.09 : 1,152,378.14 = 207,286.59 : x - Step 2: Convert to fraction form
768,252.09/1,152,378.14 = 207,286.59/x - Step 3: Cross multiply
768,252.09x = 1,152,378.14 × 207,286.59 - Step 4: Simplify right side
768,252.09x = 238,872,539,482.12 - Step 5: Solve for x
x = 238,872,539,482.12/768,252.09 - Step 6: Final answer
x = 310,929.89
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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.