Finding the Fourth Proportional to 3,239,866.79, 4,470,930.80 and 1,789,531.09
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Solution
The fourth proportional to 3,239,866.79, 4,470,930.80 and 1,789,531.09 is: 2,469,505.74
Step by Step Solution
- Step 1: Write the proportion equation
3,239,866.79 : 4,470,930.80 = 1,789,531.09 : x - Step 2: Convert to fraction form
3,239,866.79/4,470,930.80 = 1,789,531.09/x - Step 3: Cross multiply
3,239,866.79x = 4,470,930.80 × 1,789,531.09 - Step 4: Simplify right side
3,239,866.79x = 8,000,869,636,536.26 - Step 5: Solve for x
x = 8,000,869,636,536.26/3,239,866.79 - Step 6: Final answer
x = 2,469,505.74
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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.