Finding the Fourth Proportional to 1,787,715.10, 2,681,572.65 and 1,640,748.70
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Solution
The fourth proportional to 1,787,715.10, 2,681,572.65 and 1,640,748.70 is: 2,461,123.05
Step by Step Solution
- Step 1: Write the proportion equation
1,787,715.10 : 2,681,572.65 = 1,640,748.70 : x - Step 2: Convert to fraction form
1,787,715.10/2,681,572.65 = 1,640,748.70/x - Step 3: Cross multiply
1,787,715.10x = 2,681,572.65 × 1,640,748.70 - Step 4: Simplify right side
1,787,715.10x = 4,399,786,839,443.06 - Step 5: Solve for x
x = 4,399,786,839,443.06/1,787,715.10 - Step 6: Final answer
x = 2,461,123.05
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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.