Finding the Fourth Proportional to 1,242,153.19, 1,863,318.41 and 331,330.57
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Solution
The fourth proportional to 1,242,153.19, 1,863,318.41 and 331,330.57 is: 497,019.49
Step by Step Solution
- Step 1: Write the proportion equation
1,242,153.19 : 1,863,318.41 = 331,330.57 : x - Step 2: Convert to fraction form
1,242,153.19/1,863,318.41 = 331,330.57/x - Step 3: Cross multiply
1,242,153.19x = 1,863,318.41 × 331,330.57 - Step 4: Simplify right side
1,242,153.19x = 617,374,350,876.79 - Step 5: Solve for x
x = 617,374,350,876.79/1,242,153.19 - Step 6: Final answer
x = 497,019.49
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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.