Finding the Fourth Proportional to 1,203,486.12, 1,804,762.62 and 642,214.44
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Solution
The fourth proportional to 1,203,486.12, 1,804,762.62 and 642,214.44 is: 963,072.69
Step by Step Solution
- Step 1: Write the proportion equation
1,203,486.12 : 1,804,762.62 = 642,214.44 : x - Step 2: Convert to fraction form
1,203,486.12/1,804,762.62 = 642,214.44/x - Step 3: Cross multiply
1,203,486.12x = 1,804,762.62 × 642,214.44 - Step 4: Simplify right side
1,203,486.12x = 1,159,044,615,336.23 - Step 5: Solve for x
x = 1,159,044,615,336.23/1,203,486.12 - Step 6: Final answer
x = 963,072.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.