Finding the Fourth Proportional to 397,905.93, 547,894.11 and 299,931.51
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Solution
The fourth proportional to 397,905.93, 547,894.11 and 299,931.51 is: 412,988.84
Step by Step Solution
- Step 1: Write the proportion equation
397,905.93 : 547,894.11 = 299,931.51 : x - Step 2: Convert to fraction form
397,905.93/547,894.11 = 299,931.51/x - Step 3: Cross multiply
397,905.93x = 547,894.11 × 299,931.51 - Step 4: Simplify right side
397,905.93x = 164,330,707,732.41 - Step 5: Solve for x
x = 164,330,707,732.41/397,905.93 - Step 6: Final answer
x = 412,988.84
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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.