Finding the Fourth Proportional to 814,842.09, 1,124,459.28 and 447,319.17
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Solution
The fourth proportional to 814,842.09, 1,124,459.28 and 447,319.17 is: 617,287.94
Step by Step Solution
- Step 1: Write the proportion equation
814,842.09 : 1,124,459.28 = 447,319.17 : x - Step 2: Convert to fraction form
814,842.09/1,124,459.28 = 447,319.17/x - Step 3: Cross multiply
814,842.09x = 1,124,459.28 × 447,319.17 - Step 4: Simplify right side
814,842.09x = 502,992,191,828.40 - Step 5: Solve for x
x = 502,992,191,828.40/814,842.09 - Step 6: Final answer
x = 617,287.94
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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.