Finding the Fourth Proportional to 553,628.80, 764,007.75 and 298,979.99
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Solution
The fourth proportional to 553,628.80, 764,007.75 and 298,979.99 is: 412,592.38
Step by Step Solution
- Step 1: Write the proportion equation
553,628.80 : 764,007.75 = 298,979.99 : x - Step 2: Convert to fraction form
553,628.80/764,007.75 = 298,979.99/x - Step 3: Cross multiply
553,628.80x = 764,007.75 × 298,979.99 - Step 4: Simplify right side
553,628.80x = 228,423,025,634.88 - Step 5: Solve for x
x = 228,423,025,634.88/553,628.80 - Step 6: Final answer
x = 412,592.38
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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.