Finding the Fourth Proportional to 634,408.20, 875,422.08 and 379,753.92
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Solution
The fourth proportional to 634,408.20, 875,422.08 and 379,753.92 is: 524,023.75
Step by Step Solution
- Step 1: Write the proportion equation
634,408.20 : 875,422.08 = 379,753.92 : x - Step 2: Convert to fraction form
634,408.20/875,422.08 = 379,753.92/x - Step 3: Cross multiply
634,408.20x = 875,422.08 × 379,753.92 - Step 4: Simplify right side
634,408.20x = 332,444,966,534.55 - Step 5: Solve for x
x = 332,444,966,534.55/634,408.20 - Step 6: Final answer
x = 524,023.75
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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.