Finding the Fourth Proportional to 1,328,562.97, 1,993,160.79 and 430,004.70
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Solution
The fourth proportional to 1,328,562.97, 1,993,160.79 and 430,004.70 is: 645,109.44
Step by Step Solution
- Step 1: Write the proportion equation
1,328,562.97 : 1,993,160.79 = 430,004.70 : x - Step 2: Convert to fraction form
1,328,562.97/1,993,160.79 = 430,004.70/x - Step 3: Cross multiply
1,328,562.97x = 1,993,160.79 × 430,004.70 - Step 4: Simplify right side
1,328,562.97x = 857,068,507,555.71 - Step 5: Solve for x
x = 857,068,507,555.71/1,328,562.97 - Step 6: Final answer
x = 645,109.44
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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.