Finding the Fourth Proportional to 1,678,228.40, 2,518,217.40 and 731,694.80
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Solution
The fourth proportional to 1,678,228.40, 2,518,217.40 and 731,694.80 is: 1,097,923.61
Step by Step Solution
- Step 1: Write the proportion equation
1,678,228.40 : 2,518,217.40 = 731,694.80 : x - Step 2: Convert to fraction form
1,678,228.40/2,518,217.40 = 731,694.80/x - Step 3: Cross multiply
1,678,228.40x = 2,518,217.40 × 731,694.80 - Step 4: Simplify right side
1,678,228.40x = 1,842,566,576,849.52 - Step 5: Solve for x
x = 1,842,566,576,849.52/1,678,228.40 - Step 6: Final answer
x = 1,097,923.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.