Finding the Fourth Proportional to 1,368,931.74, 2,053,590.57 and 422,379.42
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Solution
The fourth proportional to 1,368,931.74, 2,053,590.57 and 422,379.42 is: 633,628.67
Step by Step Solution
- Step 1: Write the proportion equation
1,368,931.74 : 2,053,590.57 = 422,379.42 : x - Step 2: Convert to fraction form
1,368,931.74/2,053,590.57 = 422,379.42/x - Step 3: Cross multiply
1,368,931.74x = 2,053,590.57 × 422,379.42 - Step 4: Simplify right side
1,368,931.74x = 867,394,393,874.07 - Step 5: Solve for x
x = 867,394,393,874.07/1,368,931.74 - Step 6: Final answer
x = 633,628.67
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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.