Finding the Fourth Proportional to 2,118,041.84, 2,922,826.20 and 1,212,448.88
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Solution
The fourth proportional to 2,118,041.84, 2,922,826.20 and 1,212,448.88 is: 1,673,138.50
Step by Step Solution
- Step 1: Write the proportion equation
2,118,041.84 : 2,922,826.20 = 1,212,448.88 : x - Step 2: Convert to fraction form
2,118,041.84/2,922,826.20 = 1,212,448.88/x - Step 3: Cross multiply
2,118,041.84x = 2,922,826.20 × 1,212,448.88 - Step 4: Simplify right side
2,118,041.84x = 3,543,777,352,624.66 - Step 5: Solve for x
x = 3,543,777,352,624.66/2,118,041.84 - Step 6: Final answer
x = 1,673,138.50
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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.