Finding the Fourth Proportional to 890,747.79, 1,227,583.42 and 632,636.02
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Solution
The fourth proportional to 890,747.79, 1,227,583.42 and 632,636.02 is: 871,866.87
Step by Step Solution
- Step 1: Write the proportion equation
890,747.79 : 1,227,583.42 = 632,636.02 : x - Step 2: Convert to fraction form
890,747.79/1,227,583.42 = 632,636.02/x - Step 3: Cross multiply
890,747.79x = 1,227,583.42 × 632,636.02 - Step 4: Simplify right side
890,747.79x = 776,613,489,046.79 - Step 5: Solve for x
x = 776,613,489,046.79/890,747.79 - Step 6: Final answer
x = 871,866.87
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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.