Finding the Fourth Proportional to 1,119,807.09, 1,679,216.49 and 320,907.33
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Solution
The fourth proportional to 1,119,807.09, 1,679,216.49 and 320,907.33 is: 481,219.39
Step by Step Solution
- Step 1: Write the proportion equation
1,119,807.09 : 1,679,216.49 = 320,907.33 : x - Step 2: Convert to fraction form
1,119,807.09/1,679,216.49 = 320,907.33/x - Step 3: Cross multiply
1,119,807.09x = 1,679,216.49 × 320,907.33 - Step 4: Simplify right side
1,119,807.09x = 538,872,880,297.87 - Step 5: Solve for x
x = 538,872,880,297.87/1,119,807.09 - Step 6: Final answer
x = 481,219.39
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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.