Finding the Fourth Proportional to 476,438.79, 657,456.08 and 261,577.65
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Solution
The fourth proportional to 476,438.79, 657,456.08 and 261,577.65 is: 360,960.99
Step by Step Solution
- Step 1: Write the proportion equation
476,438.79 : 657,456.08 = 261,577.65 : x - Step 2: Convert to fraction form
476,438.79/657,456.08 = 261,577.65/x - Step 3: Cross multiply
476,438.79x = 657,456.08 × 261,577.65 - Step 4: Simplify right side
476,438.79x = 171,975,815,076.72 - Step 5: Solve for x
x = 171,975,815,076.72/476,438.79 - Step 6: Final answer
x = 360,960.99
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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.