Finding the Fourth Proportional to 457,579.41, 631,246.01 and 287,907.09
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Solution
The fourth proportional to 457,579.41, 631,246.01 and 287,907.09 is: 397,177.40
Step by Step Solution
- Step 1: Write the proportion equation
457,579.41 : 631,246.01 = 287,907.09 : x - Step 2: Convert to fraction form
457,579.41/631,246.01 = 287,907.09/x - Step 3: Cross multiply
457,579.41x = 631,246.01 × 287,907.09 - Step 4: Simplify right side
457,579.41x = 181,740,200,373.68 - Step 5: Solve for x
x = 181,740,200,373.68/457,579.41 - Step 6: Final answer
x = 397,177.40
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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.