Finding the Fourth Proportional to 425.63, 637.36 and 389.99
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Solution
The fourth proportional to 425.63, 637.36 and 389.99 is: 583.99
Step by Step Solution
- Step 1: Write the proportion equation
425.63 : 637.36 = 389.99 : x - Step 2: Convert to fraction form
425.63/637.36 = 389.99/x - Step 3: Cross multiply
425.63x = 637.36 × 389.99 - Step 4: Simplify right side
425.63x = 248,564.03 - Step 5: Solve for x
x = 248,564.03/425.63 - Step 6: Final answer
x = 583.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.