Finding the Fourth Proportional to 1,340,239.70, 1,849,545.07 and 728,392.49
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Solution
The fourth proportional to 1,340,239.70, 1,849,545.07 and 728,392.49 is: 1,005,189.41
Step by Step Solution
- Step 1: Write the proportion equation
1,340,239.70 : 1,849,545.07 = 728,392.49 : x - Step 2: Convert to fraction form
1,340,239.70/1,849,545.07 = 728,392.49/x - Step 3: Cross multiply
1,340,239.70x = 1,849,545.07 × 728,392.49 - Step 4: Simplify right side
1,340,239.70x = 1,347,194,741,707.41 - Step 5: Solve for x
x = 1,347,194,741,707.41/1,340,239.70 - Step 6: Final answer
x = 1,005,189.41
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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.