Finding the Fourth Proportional to 1,121,166.70, 1,681,750.05 and 806,238.70
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Solution
The fourth proportional to 1,121,166.70, 1,681,750.05 and 806,238.70 is: 1,209,358.05
Step by Step Solution
- Step 1: Write the proportion equation
1,121,166.70 : 1,681,750.05 = 806,238.70 : x - Step 2: Convert to fraction form
1,121,166.70/1,681,750.05 = 806,238.70/x - Step 3: Cross multiply
1,121,166.70x = 1,681,750.05 × 806,238.70 - Step 4: Simplify right side
1,121,166.70x = 1,355,891,974,036.94 - Step 5: Solve for x
x = 1,355,891,974,036.94/1,121,166.70 - Step 6: Final answer
x = 1,209,358.05
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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.