Finding the Fourth Proportional to 450,162.05, 621,306.74 and 289,218.29
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Solution
The fourth proportional to 450,162.05, 621,306.74 and 289,218.29 is: 399,174.63
Step by Step Solution
- Step 1: Write the proportion equation
450,162.05 : 621,306.74 = 289,218.29 : x - Step 2: Convert to fraction form
450,162.05/621,306.74 = 289,218.29/x - Step 3: Cross multiply
450,162.05x = 621,306.74 × 289,218.29 - Step 4: Simplify right side
450,162.05x = 179,693,271,462.18 - Step 5: Solve for x
x = 179,693,271,462.18/450,162.05 - Step 6: Final answer
x = 399,174.63
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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.