Finding the Fourth Proportional to 555,644.49, 766,787.73 and 313,926.97
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Solution
The fourth proportional to 555,644.49, 766,787.73 and 313,926.97 is: 433,218.28
Step by Step Solution
- Step 1: Write the proportion equation
555,644.49 : 766,787.73 = 313,926.97 : x - Step 2: Convert to fraction form
555,644.49/766,787.73 = 313,926.97/x - Step 3: Cross multiply
555,644.49x = 766,787.73 × 313,926.97 - Step 4: Simplify right side
555,644.49x = 240,715,348,712.08 - Step 5: Solve for x
x = 240,715,348,712.08/555,644.49 - Step 6: Final answer
x = 433,218.28
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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.