Finding the Fourth Proportional to 990,122.99, 1,484,946.68 and 457,131.92
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Solution
The fourth proportional to 990,122.99, 1,484,946.68 and 457,131.92 is: 685,588.08
Step by Step Solution
- Step 1: Write the proportion equation
990,122.99 : 1,484,946.68 = 457,131.92 : x - Step 2: Convert to fraction form
990,122.99/1,484,946.68 = 457,131.92/x - Step 3: Cross multiply
990,122.99x = 1,484,946.68 × 457,131.92 - Step 4: Simplify right side
990,122.99x = 678,816,517,215.63 - Step 5: Solve for x
x = 678,816,517,215.63/990,122.99 - Step 6: Final answer
x = 685,588.08
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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.