Finding the Fourth Proportional to 521,857.68, 782,786.52 and 127,873.68
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Solution
The fourth proportional to 521,857.68, 782,786.52 and 127,873.68 is: 191,810.52
Step by Step Solution
- Step 1: Write the proportion equation
521,857.68 : 782,786.52 = 127,873.68 : x - Step 2: Convert to fraction form
521,857.68/782,786.52 = 127,873.68/x - Step 3: Cross multiply
521,857.68x = 782,786.52 × 127,873.68 - Step 4: Simplify right side
521,857.68x = 100,097,792,966.79 - Step 5: Solve for x
x = 100,097,792,966.79/521,857.68 - Step 6: Final answer
x = 191,810.52
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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.