Finding the Fourth Proportional to 553,812.12, 764,261.42 and 299,163.31
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Solution
The fourth proportional to 553,812.12, 764,261.42 and 299,163.31 is: 412,845.74
Step by Step Solution
- Step 1: Write the proportion equation
553,812.12 : 764,261.42 = 299,163.31 : x - Step 2: Convert to fraction form
553,812.12/764,261.42 = 299,163.31/x - Step 3: Cross multiply
553,812.12x = 764,261.42 × 299,163.31 - Step 4: Simplify right side
553,812.12x = 228,638,974,616.68 - Step 5: Solve for x
x = 228,638,974,616.68/553,812.12 - Step 6: Final answer
x = 412,845.74
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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.