Finding the Fourth Proportional to 421,995.90, 632,894.49 and 122,397.42
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Solution
The fourth proportional to 421,995.90, 632,894.49 and 122,397.42 is: 183,567.31
Step by Step Solution
- Step 1: Write the proportion equation
421,995.90 : 632,894.49 = 122,397.42 : x - Step 2: Convert to fraction form
421,995.90/632,894.49 = 122,397.42/x - Step 3: Cross multiply
421,995.90x = 632,894.49 × 122,397.42 - Step 4: Simplify right side
421,995.90x = 77,464,652,708.22 - Step 5: Solve for x
x = 77,464,652,708.22/421,995.90 - Step 6: Final answer
x = 183,567.31
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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.