Finding the Fourth Proportional to 1,863,658.68, 2,565,502.11 and 1,379,311.08
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Solution
The fourth proportional to 1,863,658.68, 2,565,502.11 and 1,379,311.08 is: 1,898,751.91
Step by Step Solution
- Step 1: Write the proportion equation
1,863,658.68 : 2,565,502.11 = 1,379,311.08 : x - Step 2: Convert to fraction form
1,863,658.68/2,565,502.11 = 1,379,311.08/x - Step 3: Cross multiply
1,863,658.68x = 2,565,502.11 × 1,379,311.08 - Step 4: Simplify right side
1,863,658.68x = 3,538,625,486,086.38 - Step 5: Solve for x
x = 3,538,625,486,086.38/1,863,658.68 - Step 6: Final answer
x = 1,898,751.91
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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.