Finding the Fourth Proportional to 1,328,576.14, 1,993,180.58 and 430,018.03
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Solution
The fourth proportional to 1,328,576.14, 1,993,180.58 and 430,018.03 is: 645,129.44
Step by Step Solution
- Step 1: Write the proportion equation
1,328,576.14 : 1,993,180.58 = 430,018.03 : x - Step 2: Convert to fraction form
1,328,576.14/1,993,180.58 = 430,018.03/x - Step 3: Cross multiply
1,328,576.14x = 1,993,180.58 × 430,018.03 - Step 4: Simplify right side
1,328,576.14x = 857,103,586,445.86 - Step 5: Solve for x
x = 857,103,586,445.86/1,328,576.14 - Step 6: Final answer
x = 645,129.44
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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.