Finding the Fourth Proportional to 476,494.63, 657,710.21 and 306,728.75
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Solution
The fourth proportional to 476,494.63, 657,710.21 and 306,728.75 is: 423,380.70
Step by Step Solution
- Step 1: Write the proportion equation
476,494.63 : 657,710.21 = 306,728.75 : x - Step 2: Convert to fraction form
476,494.63/657,710.21 = 306,728.75/x - Step 3: Cross multiply
476,494.63x = 657,710.21 × 306,728.75 - Step 4: Simplify right side
476,494.63x = 201,738,630,575.54 - Step 5: Solve for x
x = 201,738,630,575.54/476,494.63 - Step 6: Final answer
x = 423,380.70
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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.