Finding the Fourth Proportional to 670,493.70, 1,005,526.71 and 221,130.81
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Solution
The fourth proportional to 670,493.70, 1,005,526.71 and 221,130.81 is: 331,625.69
Step by Step Solution
- Step 1: Write the proportion equation
670,493.70 : 1,005,526.71 = 221,130.81 : x - Step 2: Convert to fraction form
670,493.70/1,005,526.71 = 221,130.81/x - Step 3: Cross multiply
670,493.70x = 1,005,526.71 × 221,130.81 - Step 4: Simplify right side
670,493.70x = 222,352,935,858.94 - Step 5: Solve for x
x = 222,352,935,858.94/670,493.70 - Step 6: Final answer
x = 331,625.69
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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.