Finding the Fourth Proportional to 511,898.38, 706,439.01 and 285,587.62
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Solution
The fourth proportional to 511,898.38, 706,439.01 and 285,587.62 is: 394,121.65
Step by Step Solution
- Step 1: Write the proportion equation
511,898.38 : 706,439.01 = 285,587.62 : x - Step 2: Convert to fraction form
511,898.38/706,439.01 = 285,587.62/x - Step 3: Cross multiply
511,898.38x = 706,439.01 × 285,587.62 - Step 4: Simplify right side
511,898.38x = 201,750,235,541.06 - Step 5: Solve for x
x = 201,750,235,541.06/511,898.38 - Step 6: Final answer
x = 394,121.65
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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.