Finding the Fourth Proportional to 348,757.84, 521,777.09 and 305,721.63
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Solution
The fourth proportional to 348,757.84, 521,777.09 and 305,721.63 is: 457,390.55
Step by Step Solution
- Step 1: Write the proportion equation
348,757.84 : 521,777.09 = 305,721.63 : x - Step 2: Convert to fraction form
348,757.84/521,777.09 = 305,721.63/x - Step 3: Cross multiply
348,757.84x = 521,777.09 × 305,721.63 - Step 4: Simplify right side
348,757.84x = 159,518,539,078.27 - Step 5: Solve for x
x = 159,518,539,078.27/348,757.84 - Step 6: Final answer
x = 457,390.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.