Finding the Fourth Proportional to 403,265.28, 555,574.40 and 289,891.84
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Solution
The fourth proportional to 403,265.28, 555,574.40 and 289,891.84 is: 399,380.99
Step by Step Solution
- Step 1: Write the proportion equation
403,265.28 : 555,574.40 = 289,891.84 : x - Step 2: Convert to fraction form
403,265.28/555,574.40 = 289,891.84/x - Step 3: Cross multiply
403,265.28x = 555,574.40 × 289,891.84 - Step 4: Simplify right side
403,265.28x = 161,056,485,072.90 - Step 5: Solve for x
x = 161,056,485,072.90/403,265.28 - Step 6: Final answer
x = 399,380.99
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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.