Finding the Fourth Proportional to 330,913.17, 456,760.01 and 286,072.84
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Solution
The fourth proportional to 330,913.17, 456,760.01 and 286,072.84 is: 394,866.83
Step by Step Solution
- Step 1: Write the proportion equation
330,913.17 : 456,760.01 = 286,072.84 : x - Step 2: Convert to fraction form
330,913.17/456,760.01 = 286,072.84/x - Step 3: Cross multiply
330,913.17x = 456,760.01 × 286,072.84 - Step 4: Simplify right side
330,913.17x = 130,666,633,259.13 - Step 5: Solve for x
x = 130,666,633,259.13/330,913.17 - Step 6: Final answer
x = 394,866.83
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1.5x scale
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.