Finding the Fourth Proportional to 2,117,748.71, 3,176,697.53 and 678,475.80
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Solution
The fourth proportional to 2,117,748.71, 3,176,697.53 and 678,475.80 is: 1,017,737.56
Step by Step Solution
- Step 1: Write the proportion equation
2,117,748.71 : 3,176,697.53 = 678,475.80 : x - Step 2: Convert to fraction form
2,117,748.71/3,176,697.53 = 678,475.80/x - Step 3: Cross multiply
2,117,748.71x = 3,176,697.53 × 678,475.80 - Step 4: Simplify right side
2,117,748.71x = 2,155,312,399,720.96 - Step 5: Solve for x
x = 2,155,312,399,720.96/2,117,748.71 - Step 6: Final answer
x = 1,017,737.56
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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.