Finding the Fourth Proportional to 457,262.93, 631,330.80 and 285,442.49
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Solution
The fourth proportional to 457,262.93, 631,330.80 and 285,442.49 is: 394,102.88
Step by Step Solution
- Step 1: Write the proportion equation
457,262.93 : 631,330.80 = 285,442.49 : x - Step 2: Convert to fraction form
457,262.93/631,330.80 = 285,442.49/x - Step 3: Cross multiply
457,262.93x = 631,330.80 × 285,442.49 - Step 4: Simplify right side
457,262.93x = 180,208,635,565.69 - Step 5: Solve for x
x = 180,208,635,565.69/457,262.93 - Step 6: Final answer
x = 394,102.88
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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.