Finding the Fourth Proportional to 467,243.08, 645,075.57 and 306,378.70
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Solution
The fourth proportional to 467,243.08, 645,075.57 and 306,378.70 is: 422,986.28
Step by Step Solution
- Step 1: Write the proportion equation
467,243.08 : 645,075.57 = 306,378.70 : x - Step 2: Convert to fraction form
467,243.08/645,075.57 = 306,378.70/x - Step 3: Cross multiply
467,243.08x = 645,075.57 × 306,378.70 - Step 4: Simplify right side
467,243.08x = 197,637,414,538.36 - Step 5: Solve for x
x = 197,637,414,538.36/467,243.08 - Step 6: Final answer
x = 422,986.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.