Finding the Fourth Proportional to 842,812.98, 1,263,955.95 and 281,716.26
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Solution
The fourth proportional to 842,812.98, 1,263,955.95 and 281,716.26 is: 422,486.31
Step by Step Solution
- Step 1: Write the proportion equation
842,812.98 : 1,263,955.95 = 281,716.26 : x - Step 2: Convert to fraction form
842,812.98/1,263,955.95 = 281,716.26/x - Step 3: Cross multiply
842,812.98x = 1,263,955.95 × 281,716.26 - Step 4: Simplify right side
842,812.98x = 356,076,943,038.75 - Step 5: Solve for x
x = 356,076,943,038.75/842,812.98 - Step 6: Final answer
x = 422,486.31
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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.