Finding the Fourth Proportional to 571,115.20, 855,916.80 and 304,301.20
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Solution
The fourth proportional to 571,115.20, 855,916.80 and 304,301.20 is: 456,048.99
Step by Step Solution
- Step 1: Write the proportion equation
571,115.20 : 855,916.80 = 304,301.20 : x - Step 2: Convert to fraction form
571,115.20/855,916.80 = 304,301.20/x - Step 3: Cross multiply
571,115.20x = 855,916.80 × 304,301.20 - Step 4: Simplify right side
571,115.20x = 260,456,509,340.16 - Step 5: Solve for x
x = 260,456,509,340.16/571,115.20 - Step 6: Final answer
x = 456,048.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.