Finding the Fourth Proportional to 1,472,129.20, 2,214,098.70 and 1,318,601.80
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Solution
The fourth proportional to 1,472,129.20, 2,214,098.70 and 1,318,601.80 is: 1,983,191.78
Step by Step Solution
- Step 1: Write the proportion equation
1,472,129.20 : 2,214,098.70 = 1,318,601.80 : x - Step 2: Convert to fraction form
1,472,129.20/2,214,098.70 = 1,318,601.80/x - Step 3: Cross multiply
1,472,129.20x = 2,214,098.70 × 1,318,601.80 - Step 4: Simplify right side
1,472,129.20x = 2,919,514,531,197.66 - Step 5: Solve for x
x = 2,919,514,531,197.66/1,472,129.20 - Step 6: Final answer
x = 1,983,191.78
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.