Finding the Fourth Proportional to 553,815.72, 764,197.68 and 324,202.68
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Solution
The fourth proportional to 553,815.72, 764,197.68 and 324,202.68 is: 447,359.88
Step by Step Solution
- Step 1: Write the proportion equation
553,815.72 : 764,197.68 = 324,202.68 : x - Step 2: Convert to fraction form
553,815.72/764,197.68 = 324,202.68/x - Step 3: Cross multiply
553,815.72x = 764,197.68 × 324,202.68 - Step 4: Simplify right side
553,815.72x = 247,754,935,905.78 - Step 5: Solve for x
x = 247,754,935,905.78/553,815.72 - Step 6: Final answer
x = 447,359.88
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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.