Finding the Fourth Proportional to 419,724.36, 579,034.50 and 283,708.68
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Solution
The fourth proportional to 419,724.36, 579,034.50 and 283,708.68 is: 391,392.85
Step by Step Solution
- Step 1: Write the proportion equation
419,724.36 : 579,034.50 = 283,708.68 : x - Step 2: Convert to fraction form
419,724.36/579,034.50 = 283,708.68/x - Step 3: Cross multiply
419,724.36x = 579,034.50 × 283,708.68 - Step 4: Simplify right side
419,724.36x = 164,277,113,669.46 - Step 5: Solve for x
x = 164,277,113,669.46/419,724.36 - Step 6: Final answer
x = 391,392.85
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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.