Finding the Fourth Proportional to 2,118,042.84, 2,922,827.58 and 1,212,449.88
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Solution
The fourth proportional to 2,118,042.84, 2,922,827.58 and 1,212,449.88 is: 1,673,139.88
Step by Step Solution
- Step 1: Write the proportion equation
2,118,042.84 : 2,922,827.58 = 1,212,449.88 : x - Step 2: Convert to fraction form
2,118,042.84/2,922,827.58 = 1,212,449.88/x - Step 3: Cross multiply
2,118,042.84x = 2,922,827.58 × 1,212,449.88 - Step 4: Simplify right side
2,118,042.84x = 3,543,781,948,631.69 - Step 5: Solve for x
x = 3,543,781,948,631.69/2,118,042.84 - Step 6: Final answer
x = 1,673,139.88
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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.