Finding the Fourth Proportional to 669,053.70, 922,874.12 and 396,928.94
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Solution
The fourth proportional to 669,053.70, 922,874.12 and 396,928.94 is: 547,512.77
Step by Step Solution
- Step 1: Write the proportion equation
669,053.70 : 922,874.12 = 396,928.94 : x - Step 2: Convert to fraction form
669,053.70/922,874.12 = 396,928.94/x - Step 3: Cross multiply
669,053.70x = 922,874.12 × 396,928.94 - Step 4: Simplify right side
669,053.70x = 366,315,446,205.03 - Step 5: Solve for x
x = 366,315,446,205.03/669,053.70 - Step 6: Final answer
x = 547,512.77
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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.