Finding the Fourth Proportional to 791,372.10, 1,187,568.45 and 436,640.70
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Solution
The fourth proportional to 791,372.10, 1,187,568.45 and 436,640.70 is: 655,242.61
Step by Step Solution
- Step 1: Write the proportion equation
791,372.10 : 1,187,568.45 = 436,640.70 : x - Step 2: Convert to fraction form
791,372.10/1,187,568.45 = 436,640.70/x - Step 3: Cross multiply
791,372.10x = 1,187,568.45 × 436,640.70 - Step 4: Simplify right side
791,372.10x = 518,540,719,305.92 - Step 5: Solve for x
x = 518,540,719,305.92/791,372.10 - Step 6: Final answer
x = 655,242.61
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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.