Finding the Fourth Proportional to 478,443.03, 659,959.41 and 284,720.79
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Solution
The fourth proportional to 478,443.03, 659,959.41 and 284,720.79 is: 392,740.94
Step by Step Solution
- Step 1: Write the proportion equation
478,443.03 : 659,959.41 = 284,720.79 : x - Step 2: Convert to fraction form
478,443.03/659,959.41 = 284,720.79/x - Step 3: Cross multiply
478,443.03x = 659,959.41 × 284,720.79 - Step 4: Simplify right side
478,443.03x = 187,904,164,583.13 - Step 5: Solve for x
x = 187,904,164,583.13/478,443.03 - Step 6: Final answer
x = 392,740.94
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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.