Finding the Fourth Proportional to 456,628.99, 630,324.62 and 408,799.21
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Solution
The fourth proportional to 456,628.99, 630,324.62 and 408,799.21 is: 564,301.02
Step by Step Solution
- Step 1: Write the proportion equation
456,628.99 : 630,324.62 = 408,799.21 : x - Step 2: Convert to fraction form
456,628.99/630,324.62 = 408,799.21/x - Step 3: Cross multiply
456,628.99x = 630,324.62 × 408,799.21 - Step 4: Simplify right side
456,628.99x = 257,676,206,699.55 - Step 5: Solve for x
x = 257,676,206,699.55/456,628.99 - Step 6: Final answer
x = 564,301.02
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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.