Finding the Fourth Proportional to 554,912.19, 765,781.44 and 313,204.95
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Solution
The fourth proportional to 554,912.19, 765,781.44 and 313,204.95 is: 432,224.31
Step by Step Solution
- Step 1: Write the proportion equation
554,912.19 : 765,781.44 = 313,204.95 : x - Step 2: Convert to fraction form
554,912.19/765,781.44 = 313,204.95/x - Step 3: Cross multiply
554,912.19x = 765,781.44 × 313,204.95 - Step 4: Simplify right side
554,912.19x = 239,846,537,626.13 - Step 5: Solve for x
x = 239,846,537,626.13/554,912.19 - Step 6: Final answer
x = 432,224.31
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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.