Finding the Fourth Proportional to 1,313,106.38, 1,812,226.12 and 769,698.76
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Solution
The fourth proportional to 1,313,106.38, 1,812,226.12 and 769,698.76 is: 1,062,265.95
Step by Step Solution
- Step 1: Write the proportion equation
1,313,106.38 : 1,812,226.12 = 769,698.76 : x - Step 2: Convert to fraction form
1,313,106.38/1,812,226.12 = 769,698.76/x - Step 3: Cross multiply
1,313,106.38x = 1,812,226.12 × 769,698.76 - Step 4: Simplify right side
1,313,106.38x = 1,394,868,197,403.61 - Step 5: Solve for x
x = 1,394,868,197,403.61/1,313,106.38 - Step 6: Final answer
x = 1,062,265.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.