Finding the Fourth Proportional to 1,342,259.21, 2,013,392.96 and 331,381.28
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Solution
The fourth proportional to 1,342,259.21, 2,013,392.96 and 331,381.28 is: 497,072.94
Step by Step Solution
- Step 1: Write the proportion equation
1,342,259.21 : 2,013,392.96 = 331,381.28 : x - Step 2: Convert to fraction form
1,342,259.21/2,013,392.96 = 331,381.28/x - Step 3: Cross multiply
1,342,259.21x = 2,013,392.96 × 331,381.28 - Step 4: Simplify right side
1,342,259.21x = 667,200,724,503.92 - Step 5: Solve for x
x = 667,200,724,503.92/1,342,259.21 - Step 6: Final answer
x = 497,072.94
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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.