Finding the Fourth Proportional to 842,787.86, 1,263,918.80 and 281,691.14
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Solution
The fourth proportional to 842,787.86, 1,263,918.80 and 281,691.14 is: 422,448.80
Step by Step Solution
- Step 1: Write the proportion equation
842,787.86 : 1,263,918.80 = 281,691.14 : x - Step 2: Convert to fraction form
842,787.86/1,263,918.80 = 281,691.14/x - Step 3: Cross multiply
842,787.86x = 1,263,918.80 × 281,691.14 - Step 4: Simplify right side
842,787.86x = 356,034,722,024.07 - Step 5: Solve for x
x = 356,034,722,024.07/842,787.86 - Step 6: Final answer
x = 422,448.80
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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.