Finding the Fourth Proportional to 1,212,355.80, 1,816,171.74 and 737,864.28
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Solution
The fourth proportional to 1,212,355.80, 1,816,171.74 and 737,864.28 is: 1,105,358.88
Step by Step Solution
- Step 1: Write the proportion equation
1,212,355.80 : 1,816,171.74 = 737,864.28 : x - Step 2: Convert to fraction form
1,212,355.80/1,816,171.74 = 737,864.28/x - Step 3: Cross multiply
1,212,355.80x = 1,816,171.74 × 737,864.28 - Step 4: Simplify right side
1,212,355.80x = 1,340,088,253,291.45 - Step 5: Solve for x
x = 1,340,088,253,291.45/1,212,355.80 - Step 6: Final answer
x = 1,105,358.88
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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.