Finding the Fourth Proportional to 743,485.76, 1,026,019.68 and 403,959.68
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Solution
The fourth proportional to 743,485.76, 1,026,019.68 and 403,959.68 is: 557,469.43
Step by Step Solution
- Step 1: Write the proportion equation
743,485.76 : 1,026,019.68 = 403,959.68 : x - Step 2: Convert to fraction form
743,485.76/1,026,019.68 = 403,959.68/x - Step 3: Cross multiply
743,485.76x = 1,026,019.68 × 403,959.68 - Step 4: Simplify right side
743,485.76x = 414,470,581,606.50 - Step 5: Solve for x
x = 414,470,581,606.50/743,485.76 - Step 6: Final answer
x = 557,469.43
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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.