Finding the Fourth Proportional to 2,148,156.56, 2,963,730.42 and 1,217,764.50
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Solution
The fourth proportional to 2,148,156.56, 2,963,730.42 and 1,217,764.50 is: 1,680,103.66
Step by Step Solution
- Step 1: Write the proportion equation
2,148,156.56 : 2,963,730.42 = 1,217,764.50 : x - Step 2: Convert to fraction form
2,148,156.56/2,963,730.42 = 1,217,764.50/x - Step 3: Cross multiply
2,148,156.56x = 2,963,730.42 × 1,217,764.50 - Step 4: Simplify right side
2,148,156.56x = 3,609,125,693,046.09 - Step 5: Solve for x
x = 3,609,125,693,046.09/2,148,156.56 - Step 6: Final answer
x = 1,680,103.66
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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.